38,555 results match your criteria Pituitary Tumors


Readability of Printed Online Education Materials on Pituitary Tumors: Untangling a Web of Complexity.

Am J Rhinol Allergy 2020 May 27:1945892420927288. Epub 2020 May 27.

Indiana University School of Medicine, Indianapolis, Indiana.

Background: Patients are increasingly turning to the internet for health education. Due to the complex pathophysiology, clinic-diagnostic profile, and management spectrum of pituitary tumors, an evaluation of the readability of printed online education materials (POEMs) regarding this entity is warranted.

Objective: (1) To apply established readability assessment tools to internet search results on the topic of pituitary tumors. Read More

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http://dx.doi.org/10.1177/1945892420927288DOI Listing

The implication of giant tumor size on surgical resection, oncological, and functional outcomes in craniopharyngioma.

Pituitary 2020 May 25. Epub 2020 May 25.

Department of Neurosurgery, Sri Chitra Tirunal Institute for Medical Science and Technology, Trivandrum, Kerala, India.

Objective: Implication of the tumor size on oncological and functional outcomes of craniopharyngioma is inconsistently reported. The aim of this study is to assess the postoperative outcome of giant craniopharyngiomas (> 4 cm in diameter) and to elucidate the impact of tumor size on various outcome parameters and survival.

Material And Methods: Forty-four patients (children aged ≤ 18 years: 25; adults: 16) with giant craniopharyngioma, operated between January 2001 and December 2015, were included in this study. Read More

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http://dx.doi.org/10.1007/s11102-020-01053-zDOI Listing

Neuroimaging of aggressive pituitary tumors.

Rev Endocr Metab Disord 2020 May 25. Epub 2020 May 25.

Department of Endocrinology CHU Sart Tilman, University of Liège, Liège, Belgium.

Aggresssive pituitary tumors are defined as radiologically invasive, exhibiting a rapid growth and a poor response to the medical and surgical treatment options. The role of magnetic resonance imaging (MRI) is fundamental to assess tumor aggressiveness before surgical exploration. Distinction between cavernous sinus invasion and cavernous sinus compression is often challenging and cannot be solved always by using the Knosp criteria. Read More

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http://dx.doi.org/10.1007/s11154-020-09557-6DOI Listing

Expression of programmed death-ligand 1 (PD-L1) in human pituitary neuroendocrine tumor.

Cancer Immunol Immunother 2020 May 22. Epub 2020 May 22.

Laboratoire MITOVASC, UMR CNRS 6015, INSERM 1083, University of Angers, Angers, France.

Objective: To explore the programmed death-ligand 1 (PD-L1) expression in varied subtypes of pituitary neuroendocrine tumors with assessment of their clinical behavior at diagnosis and follow-up.

Methods: We conducted a retrospective monocentric study, including all patients operated in the Academic Hospital of Angers (France) for a pituitary neuroendocrine tumor between 2012 and 2018. PDL-1 immunostaining was performed using a European Conformity-In Vitro Diagnostic-labeled anti-PDL1 antibody (clone 22C3). Read More

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http://dx.doi.org/10.1007/s00262-020-02611-xDOI Listing

Predictive model of surgical remission in acromegaly: age, presurgical GH levels and Knosp grade as the best predictors of surgical remission.

J Endocrinol Invest 2020 May 21. Epub 2020 May 21.

Neuroendocrinology Unit, Department of Neurosurgery, Hospital Universitario Ramón y Cajal, Madrid, Spain.

Purpose: To identify presurgical clinical, hormonal and radiological variables associated with surgical remission in acromegaly and develop a predictive model for surgical remission.

Methods: Ambispective study of acromegaly surgical patients followed in two Spanish tertiary hospitals. Patients operated by the same neurosurgeon by endonasal endoscopic transsphenoidal approach (n = 49) were included to develop the predictive model, and patients operated by other neurosurgeons (n = 37) were used for external validation of the predictive model. Read More

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http://dx.doi.org/10.1007/s40618-020-01296-4DOI Listing

Predictors of dopamine agonist resistance in prolactinoma patients.

BMC Endocr Disord 2020 May 19;20(1):68. Epub 2020 May 19.

Department of Neurosurgery, VUB University Hospital of Brussels, Laarbeeklaan 101, 1090, Brussels, Belgium.

Background: Surgical resection of prolactinomas resistant to dopamine agonists is frequently incomplete due to fibrotic changes of the tumour under pharmacological therapy. In order to identify a subgroup of patients who may benefit from early surgery, we thought to investigate possible predictive factors of pharmacological resistance of prolactinomas to dopamine agonists.

Methods: We retrospectively analyzed a database of a Belgian tertiary reference center for patients with pituitary tumours from 2014 to 2016. Read More

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http://dx.doi.org/10.1186/s12902-020-0543-4DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC7236128PMC

Cushing's disease due to a pituitary adenoma as a component of collision tumor: A case report and review of the literature.

J Med Case Rep 2020 May 19;14(1):59. Epub 2020 May 19.

Department of Neurosurgery, Kocaeli University, Faculty of Medicine, Kocaeli, Turkey.

Background: The coexistence of two morphologically different tumors attached to each other creates a very rare type of tumor called a collision tumor. Collision tumors containing pituitary adenoma-sellar meningioma have only been described in four cases to date; we discuss a fifth case harboring a collision tumor comprising a pituitary corticotroph adenoma and a sellar meningioma in the same anatomic position.

Case Presentation: A 34-year-old Caucasian woman presented with menstrual irregularity, severe weakness of the proximal muscles, and 10-15 kg weight gain within a year. Read More

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http://dx.doi.org/10.1186/s13256-020-02382-0DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC7236304PMC

FSH levels are related to E-cadherin expression and subcellular location in non-functioning pituitary tumors.

J Clin Endocrinol Metab 2020 May 18. Epub 2020 May 18.

Section of Specialized Endocrinology, Department of Endocrinology, Oslo University Hospital, Oslo, Norway.

Context: Gonadotroph pituitary neuroendocrine tumors (PitNETs) can express FSH and LH or be hormone negative, but they rarely secrete hormones. During tumor development, epithelial cells develop a mesenchymal phenotype. This process is characterized by decreased membranous E-cadherin and translocation of E-cadherin to the nucleus. Read More

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http://dx.doi.org/10.1210/clinem/dgaa281DOI Listing

Quality of care evaluation in non-functioning pituitary adenoma with chiasm compression: visual outcomes and timing of intervention clinical recommendations based on a systematic literature review and cohort study.

Pituitary 2020 May 18. Epub 2020 May 18.

Division of Endocrinology, Department of Medicine, Leiden University Medical Center, Albinusdreef 2, 2333 ZA, Leiden, The Netherlands.

Purpose: Surgery in patients with non-functioning pituitary macroadenomas (NFMA) is effective in ameliorating visual function. The urgency for decompression, and preferred timing of surgery related to the preoperative severity of dysfunction is unknown.

Methods: Systematic review for evidence to provide clinical guidance for timing of surgical decompression of the optic chiasm, and a cohort study of 30 NFMA patients, in whom mean deviation (MD), and severity of visual dysfunction was assessed. Read More

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http://dx.doi.org/10.1007/s11102-020-01044-0DOI Listing

Metabolic syndrome and its components in adult hypopituitary patients.

Pituitary 2020 May 16. Epub 2020 May 16.

SEMPR (Endocrine Division), Department of Internal Medicine, Federal University of Parana, Curitiba, Brazil.

Purpose: To evaluate the prevalence of metabolic syndrome (MetS) and its components in adult hypopituitary patients.

Patients And Methods: Retrospective, cross-sectional analysis of a cohort of hypopituitary adult patients followed in a single reference center for pituitary diseases. MetS was defined by the National Cholesterol Education Program Adult Treatment Panel III (NCEP-ATP III) criteria. Read More

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http://dx.doi.org/10.1007/s11102-020-01048-wDOI Listing

Somatostatin receptor profile in pituitary thyrotroph adenomas.

Clin Neurol Neurosurg 2020 Apr 22;195:105865. Epub 2020 Apr 22.

First Propaedeutic Department of Internal Medicine, Laikon Hospital, National and Kapodistrian University of Athens, Athens, Greece; Department of Pathology and Pituitary Tumor Reference Center, G. Gennimatas General Hospital of Athens, Greece. Electronic address:

Objectives: Thyrotroph adenomas are the most infrequent adenohypophysial tumors. Somatostatin (SST) inhibits hormone secretion and suppresses cell proliferation. SST receptors (sstr) belong to a family of 5 types of G-coupled membrane proteins, which show high binding affinity to SST. Read More

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http://dx.doi.org/10.1016/j.clineuro.2020.105865DOI Listing

Targeted systemic and peptide radio-ligand therapy for aggressive pituitary tumors and carcinomas.

Rev Endocr Metab Disord 2020 May 15. Epub 2020 May 15.

Departments of Medicine & Neurosurgery (1&2), University of California, Los Angeles, USA.

Aggressive pituitary tumors comprise a rare but challenging subset of pituitary tumors. A major issue currently is the absence of a holistic definition that reliably identifies these tumors in a prospective manner. Although comprehensive evaluation of patient gender, age, local invasiveness, treatment responses, radiological and histopathological features may be informative to assess the potential for aggressiveness, a definitive diagnosis of this entity cannot be confidently made until disease progression is actually observed despite standard medical and surgical therapy. Read More

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http://dx.doi.org/10.1007/s11154-020-09554-9DOI Listing

Ki67 in endocrine neoplasms: to count or not to count, this is the question! A systematic review from the English language literature.

J Endocrinol Invest 2020 May 15. Epub 2020 May 15.

Pathology Section, Department of Advanced Biomedical Sciences, "Federico II" University of Naples, Via Pansini 5, 80131, Naples, Italy.

Background: Endocrine neoplasms are generally slow-growing tumors that can show hormonal activity and give metastases. In most cases they are benign and clearly malignant forms are easy to diagnose. However, borderline forms may occur and be, for the pathologists, very difficult to classify. Read More

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http://dx.doi.org/10.1007/s40618-020-01275-9DOI Listing

Cushing syndrome: Old and new genes.

Best Pract Res Clin Endocrinol Metab 2020 Apr 2:101418. Epub 2020 Apr 2.

Section on Genetics and Endocrinology, Eunice Kennedy Shriver National Institute of Child Health and Human Development (NICHD), National Institutes of Health (NIH), Bethesda, 20892, MD, USA. Electronic address:

Cushing syndrome (CS) describes the signs and symptoms caused by exogenous or endogenous hypercortisolemia. Endogenous CS is caused by either ACTH-dependent sources (pituitary or ectopic) or ACTH-independent (adrenal) hypercortisolemia. Several genes are currently known to contribute to the pathogenesis of CS. Read More

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http://dx.doi.org/10.1016/j.beem.2020.101418DOI Listing

DNA Methylation Influences miRNA Expression in Gonadotroph Pituitary Tumors.

Life (Basel) 2020 May 13;10(5). Epub 2020 May 13.

Department of Molecular and Translational Oncology, Maria Sklodowska-Curie National Research Institute of Oncology, 02-781 Warsaw, Poland.

microRNAs are involved in pathogenesis of cancer. DNA methylation plays a role in transcription of miRNA-encoding genes and may contribute to changed miRNA expression in tumors. This issue was not investigated in pituitary neuroendocrine tumors (PitNETs) previously. Read More

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http://dx.doi.org/10.3390/life10050059DOI Listing

The French world premiere of transoral robotic surgery for pituitary tumors with the Da Vinci apparatus: promises and pitfalls.

Neurochirurgie 2020 May 12. Epub 2020 May 12.

Head and Neck Surgery, Hôpital Foch, Suresnes, France.

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http://dx.doi.org/10.1016/j.neuchi.2020.02.004DOI Listing

[Pituitary microadenomas - current diagnostic and treatment methods].

Zh Vopr Neirokhir Im N N Burdenko 2020 ;84(2):110-120

Burdenko Neurosurgical Center, Moscow, Russia.

According to previously accepted criteria, pituitary microadenoma is characterized by a diameter of less than 10 mm. Improvement and widespread use of MRI are accompanied by increased incidence of diagnosis of these neoplasms. Pituitary microadenomas is an extremely heterogeneous group of tumors with different biological behavior, endocrine secretion and clinical symptoms despite the common MR characteristics. Read More

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http://dx.doi.org/10.17116/neiro202084021110DOI Listing
January 2020

Research Progress on lncRNA Functions and Mechanisms in Pituitary Adenomas.

Horm Metab Res 2020 May 13;52(5):280-288. Epub 2020 May 13.

Department of Neurosurgery, The Affiliated Hospital of Yangzhou University, Yangzhou University, Yangzhou, China.

Despite being the most common human neuroendocrine tumor, the pathogenesis of pituitary adenomas (PAs) is still unclear. Long non-coding RNA (lncRNA) is involved in a variety of physiological and pathological processes, and has been shown to play a key role in the process of tumor instigation and development by affecting the proliferation, migration, invasiveness, and metastasis of tumor cells. Therefore, lncRNAs may be used as diagnostic and prognostic markers of tumors. Read More

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http://dx.doi.org/10.1055/a-1142-8815DOI Listing

Clues For Genetic Anticipation In Multiple Endocrine Neoplasia Type 1.

J Clin Endocrinol Metab 2020 Jul;105(7)

Department of Endocrine Oncology, University Medical Center Utrecht, Utrecht, The Netherlands.

Context: Multiple endocrine neoplasia type 1 (MEN1) is a rare autosomal dominant hereditary disease caused by the loss of function of the MEN1 gene, a tumor-suppressor gene that encodes the protein menin. It is characterized by the occurrence of primary hyperparathyroidism (pHPT), duodenopancreatic neuroendocrine tumors (dpNET), pituitary tumors (PIT), adrenal adenomas, and bronchopulmonary (bp-NET), thymic, and gastric neuroendocrine tumors. More insight into factors influencing the age-related penetrance of MEN1 manifestations could provide clues for more personalized screening programs. Read More

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http://dx.doi.org/10.1210/clinem/dgaa257DOI Listing

Activin-inhibitory action on lactotrophs is decreased in lactotroph hyperplasia.

J Endocrinol 2020 02 23;244(2):415-429. Epub 2020 Jan 23.

Instituto de Biología y Medicina Experimental (IBYME), CONICET, Buenos Aires, Argentina.

Among all the hormone-secreting pituitary tumours, prolactinomas are the most frequently found in the clinic. Since dopamine is the primary inhibitor of lactotroph function, dopamine agonists represent the first-line therapy. However, a subset of patients exhibits resistance to these drugs, and therefore, alternative treatments are desired. Read More

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http://dx.doi.org/10.1530/JOE-19-0326DOI Listing
February 2020

Sellar Tumors.

Surg Pathol Clin 2020 Jun;13(2):305-329

Department of Pathology and Immunology, Washington University in St. Louis, 660 South Euclid Avenue, St Louis, MO 63110, USA. Electronic address:

Sellar region lesions include a broad range of benign and malignant neoplastic as well as non-neoplastic entities, many of which are newly described or have recently revised nomenclature. In contrast to other intracranial sites, imaging features are relatively less specific, and the need for histopathological diagnosis is of paramount importance. This review will describe pituitary adenomas, inflammatory lesions, and tumors unique to the region (craniopharyngioma) as well as tumors which may occur in but are not exclusively localized to the sellar location (schwannoma, metastasis, etc. Read More

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http://dx.doi.org/10.1016/j.path.2020.02.006DOI Listing

Molecular Advances in Central Nervous System Mesenchymal Tumors.

Surg Pathol Clin 2020 Jun;13(2):291-303

Center for Skull Base and Pituitary Surgery, Department of Neurosurgery, Brigham and Women's Hospital, Harvard Medical School, Boston, MA, USA. Electronic address:

Mesenchymal tumors of the central nervous system (CNS) comprise an array of neoplasms that may arise from or secondarily affect the CNS and its immediate surroundings. This review focuses on meningiomas and solitary fibrous tumors, the most common primary CNS mesenchymal tumors, and discusses recent advances in unveiling the molecular landscapes of these neoplasms. An effort is made to underscore those molecular findings most relevant to tumor diagnostics and prognostication from a practical perspective. Read More

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http://dx.doi.org/10.1016/j.path.2020.02.002DOI Listing

Embryonal Tumors of the Central Nervous System: An Update.

Surg Pathol Clin 2020 Jun 7;13(2):235-247. Epub 2020 Apr 7.

Department of Pathology, Boston Children's Hospital, Harvard Medical School, 300 Longwood Avenue, Boston, MA 02115, USA.

Embryonal tumors of the central nervous system (CNS) are rare, high-grade neoplasms predominantly affecting the pediatric population. Well-defined embryonal tumors include medulloblastoma, atypical teratoid/rhabdoid tumor, embryonal tumor with multilayered rosettes, C19MC-altered and embryonal tumor with multilayered rosettes, not otherwise specified, pineoblastoma, pituitary blastoma, CNS neuroblastoma, and ganglioneuroblastoma. Although their prognosis is nearly uniformly poor, the rapidly evolving understanding of their molecular biology contributes to diagnosis, prognosis, treatment, and clinical trial participation. Read More

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http://dx.doi.org/10.1016/j.path.2020.01.003DOI Listing

Pituitary germinomas: a multi-institutional study analyzing patient demographics and management patterns.

Pituitary 2020 May 9. Epub 2020 May 9.

Department of Neurosurgery, University of Illinois at Chicago College of Medicine, 912 S. Wood Street, 4N NPI, Chicago, IL, 60612, USA.

Purpose: Intracranial germinomas are exceedingly rare tumors found in the pineal and suprasellar regions. The extremely low incidence of pituitary germinoma has resulted in a significant gap in knowledge regarding its demographics, management, and treatment outcomes. We present the largest multicenter analysis of pituitary germinomas to date, focused on analyzing demographic and management patterns. Read More

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http://dx.doi.org/10.1007/s11102-020-01042-2DOI Listing

Bilateral Adrenalectomy: Differences between Cushing Disease and Ectopic ACTH-Producing Tumors.

Ann Surg Oncol 2020 May 9. Epub 2020 May 9.

Department of Surgery, Mayo Clinic, Rochester, MN, USA.

Background: Bilateral adrenalectomy (BA) is a curative treatment for hypercortisolism in patients with corticotropin (ACTH)-dependent Cushing syndrome. Indications include refractory Cushing's disease (CD) following failed pituitary surgery, and occult or unresectable ectopic ACTH-producing neoplasms (EA).

Methods: This was a single-center, retrospective review (1995-2017) of patients undergoing BA for CD or EA. Read More

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http://dx.doi.org/10.1245/s10434-020-08451-4DOI Listing

Long-acting pasireotide improves clinical signs and quality of life in Cushing's disease: results from a phase III study.

J Endocrinol Invest 2020 May 8. Epub 2020 May 8.

Università Federico II di Napoli, Naples, Italy.

Purpose: Cushing's disease (CD) is associated with significant clinical burden, increased mortality risk, and impaired health-related quality of life (HRQoL). This analysis explored the effect of long-acting pasireotide on clinical signs of hypercortisolism and HRQoL in a large subset of patients with CD.

Methods: In this phase III study (clinicaltrials. Read More

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http://dx.doi.org/10.1007/s40618-020-01246-0DOI Listing

Surgical management of growth hormone-secreting pituitary adenomas: A retrospective analysis of 33 patients.

Medicine (Baltimore) 2020 May;99(19):e19855

Neurosurgery Department.

The endoscopic endonasal transsphenoidal approach (EETA) is the primary treatment for growth hormone (GH) adenoma. This study aimed to investigate the outcomes of EETA in 33 patients with GH-secreting pituitary adenoma (PA).Thirty-three patients who underwent EETA in Eighth People's Hospital of Shenzhen between January 2013 and December 2017 were included in the comprehensive analysis. Read More

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http://dx.doi.org/10.1097/MD.0000000000019855DOI Listing

Methylphenidate improves weight control in childhood brain tumor survivors with hypothalamic obesity.

Pediatr Blood Cancer 2020 Jul 8;67(7):e28379. Epub 2020 May 8.

Division of Diabetes and Endocrinology, Department of Pediatrics, Baylor College of Medicine, Texas Children's Hospital, Houston, Texas.

Background: Hypothalamic obesity causes unrelenting weight gain for childhood brain tumor survivors. No single therapy has proven effective for treatment. We aimed to evaluate effectiveness of long-term methylphenidate therapy on body mass index (BMI) change in children with hypothalamic obesity. Read More

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http://dx.doi.org/10.1002/pbc.28379DOI Listing

Rhinological Consequences of Microsurgical Endonasal-Transsphenoidal Surgery for Pituitary Tumors.

Exp Clin Endocrinol Diabetes 2020 May 7. Epub 2020 May 7.

Department of Neurosurgery, Johannes Wesling Klinikum, Universitätsklinikum der Ruhruniversität Bochum, Minden, Germany.

Background: Transsphenoidal surgery for sellar lesions may affect patency and function of the nasal airways, smell and sinonasal quality of life. Below is our report on otorhinolaryngological data garnered from patients undergoing endonasal transsphenoidal pituitary microsurgery.

Methods: In a prospective study, 68 patients scheduled for transsphenoidal operations (32 female, 36 male, age 17-72 years) underwent otorhinolaryngological evaluation of their nasal morphology, a standardized smell test (sniffin' sticks) and rhinomanometry to analyse nasal breathing function preoperatively, 3-5 days postoperatively (without rhinomanometry), after 3-4 months and after 9 months. Read More

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http://dx.doi.org/10.1055/a-1155-6269DOI Listing

Suprasellar pituitary adenomas: a 10-year experience in a single tertiary medical center and a literature review.

Pituitary 2020 May 6. Epub 2020 May 6.

Department of Neurosurgery, Peking Union Medical College Hospital, Chinese Academy of Medical Science and Peking Union Medical College, Beijing, 100730, China.

Background: Suprasellar pituitary adenomas (SPAs) are a special type of pituitary adenoma. Although dozens of SPA cases have been reported, the exact definition and the characteristics of SPA have not been exhaustively discussed before.

Methods: In a retrospective electronic medical records review, 13 patients with SPA were identified in our hospital between January 2010 and December 2019. Read More

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http://dx.doi.org/10.1007/s11102-020-01043-1DOI Listing
May 2020
2.222 Impact Factor

NON-FUNCTIONAL PITUITARY TUMORS: A MISLEADING PRESENTATION OF AN INTRASELLAR PLASMACYTOMA.

Acta Endocrinol (Buchar) 2019 Oct-Dec;15(4):518-521

"Magna Græcia" University of Catanzaro, Dept. of Health Sciences, Catanzaro, Catanzaro, Italy.

Intrasellar plasmacytoma is a rare pituitary tumor, which originates from monoclonal plasma cells in a single lesion. Knowledge of its features comes from case reports only. Here, we present an interesting case of a 77-year-old woman with a presumptive diagnosis of non-functioning pituitary adenoma, as based on both clinical and radiological examinations. Read More

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http://dx.doi.org/10.4183/aeb.2019.518DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC7200105PMC

ADRENAL INCIDENTALOMA, BREAST CANCER AND UNRECOGNIZED MULTIPLE ENDOCRINE NEOPLASIA TYPE 1.

Authors:
S H Kim J H Park

Acta Endocrinol (Buchar) 2019 Oct-Dec;15(4):513-517

Jeonbuk National University Medical School - Department of Internal Medicine, Jeonju, Republic of Korea.

Background: The incidence of adrenal incidentaloma has been increasing proportional to the use of radiologic examination. Multiple endocrine neoplasia1 (MEN1) syndrome may present with various tumors. The present study reports a case of adrenal incidentaloma with unrecognised MEN1 syndrome associated with breast cancer. Read More

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http://dx.doi.org/10.4183/aeb.2019.513DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC7200108PMC

Surgical Indications and Techniques for Adrenalectomy.

Sisli Etfal Hastan Tip Bul 2020 24;54(1):8-22. Epub 2020 Mar 24.

Department of General Surgery, Bahcesehir University Faculty of Medicine, Istanbul, Turkey.

Indications for adrenalectomy are malignancy suspicion or malignant tumors, non-functional tumors with the risk of malignancy and functional adrenal tumors. Regardless of the size of functional tumors, they have surgical indications. The hormone-secreting adrenal tumors in which adrenalectomy is indicated are as follows: Cushing's syndrome, arises from hypersecretion of glucocorticoids produced in fasciculata adrenal cortex, Conn's syndrome, arises from an hypersecretion of aldosterone produced by glomerulosa adrenal cortex, and Pheochromocytomas that arise from adrenal medulla and produce catecholamines. Read More

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http://dx.doi.org/10.14744/SEMB.2019.05578DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC7192258PMC

T2-signal intensity, SSTR expression, and somatostatin analogs efficacy predict response to pasireotide in acromegaly.

Eur J Endocrinol 2020 Jun;182(6):595-605

Department of Medicine, Endocrinology Section, Pituitary Center Rotterdam, The Netherlands.

Objective: T2-signal intensity and somatostatin (SST) receptor expression are recognized predictors of therapy response in acromegaly. We investigated the relationship between these predictors and the hormonal and tumoral responses to long-acting pasireotide (PAS-LAR) therapy, which were also compared with responsiveness to first-generation somatostatin receptor ligands (SRLs).

Design: The PAPE study is a cohort study. Read More

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http://dx.doi.org/10.1530/EJE-19-0840DOI Listing

Endocrinology in the time of COVID-19: Management of pituitary tumours.

Eur J Endocrinol 2020 May 1. Epub 2020 May 1.

O Dekkers, Department of Clinical Epidemiology, Leids Universitair Medisch Centrum Centrum voor Humane en Klinische Genetica, Leiden, 2300 RC, Netherlands.

Patients with pituitary tumours, ensuing hormonal abnormalities and mass effects are usually followed in multidisciplinary pituitary clinics and can represent a management challenge even during times of non-pandemic. The COVID-19 pandemic has put on hold routine medical care for hundreds of millions of patients around the globe, while many pituitary patients' evaluations cannot be delayed for too long. Furthermore, the majority of patients with pituitary tumours have co-morbidities potentially impacting the course and management of COVID-19 (e. Read More

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http://dx.doi.org/10.1530/EJE-20-0473DOI Listing

LncRNA RPSAP52 Upregulates TGF-β1 to Increase Cancer Cell Stemness and Predict Postoperative Survival in Glioblastoma.

Cancer Manag Res 2020 15;12:2541-2547. Epub 2020 Apr 15.

Department of Neurosurgery, Sixth Medical Center, Chinese PLA General Hospital, Beijing 100048, People's Republic of China.

Introduction: Ribosomal protein SA pseudogene 52 (RPSAP52) has been characterized as an oncogenic lncRNA in pituitary tumors. Analysis of TCGA dataset revealed the upregulation of RPSAP52 in glioblastoma (GBM). We, therefore, investigated the roles of RPSAP52 in GBM. Read More

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http://dx.doi.org/10.2147/CMAR.S227496DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC7170709PMC

Health-related quality of life in patients with Multiple Endocrine Neoplasia type 1.

Neuroendocrinology 2020 May 4. Epub 2020 May 4.

Introduction: Multiple Endocrine Neoplasia type 1 (MEN1) is a hereditary endocrine tumor syndrome characterized by the triad of primary hyperparathyroidism (pHPT), duodenopancreatic neuroendocrine tumors (pNETs) and pituitary tumors. Patients are confronted with substantial morbidity and are consequently at risk for an impaired quality of life (QOL). Meticulous assessment of QOL and associated factors in a representative population is needed to understand the full spectrum of the burden of the disease. Read More

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http://dx.doi.org/10.1159/000508374DOI Listing

The manufacturing procedure of 3D printed models for endoscopic endonasal transsphenoidal pituitary surgery.

Technol Health Care 2020 Apr 16. Epub 2020 Apr 16.

State Key Laboratory for Management and Control of Complex Systems, Institute of Automation, Chinese Academy of Sciences, Beijing, China.

Background: Endoscopic endonasal transsphenoidal pituitary surgery is usually difficult and risky. With limited sources of cadaveric skulls, traditional methods of using virtual images to study the surgery are difficult for neurosurgeons and students because the surgery requires spatial imagination and good understanding of the patient's conditions as well as practical experience. The three-dimensional (3D) printing technique has played an important role in clinical medicine due to its advantages of low cost, high-efficiency and customization. Read More

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http://dx.doi.org/10.3233/THC-209014DOI Listing

Preoperative radiographic and clinical factors associated with the visualization of intraoperative cerebrospinal fluid during endoscopic transsphenoidal resection of pituitary adenomas.

Surg Neurol Int 2020 4;11:59. Epub 2020 Apr 4.

Departments of Neurosurgery, University of Alabama at Birmingham, Birmingham, Alabama.

Background: Intraoperative visualization of cerebrospinal fluid (CSF) during endoscopic endonasal resection of skull base tumors is the most common factor contributing to the development of postoperative CSF leaks. No previous studies have solely evaluated preoperative factors contributing to intraoperative CSF visualization. The purpose of this study was to identify preoperative factors predictive of intraoperative CSF visualization. Read More

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http://dx.doi.org/10.25259/SNI_24_2020DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC7193202PMC

Precision of preoperative diagnosis in patients with brain tumor - A prospective study based on "top three list" of differential diagnosis for 1061 patients.

Surg Neurol Int 2020 28;11:55. Epub 2020 Mar 28.

Department of Neurosurgery, Kagoshima University, Sakuragaoka, Kagoshima, Japan.

Background: Accurate diagnosis of brain tumor is crucial for adequate surgical strategy. Our institution follows a comprehensive preoperative evaluation based on clinical and imaging information.

Methods: To assess the precision of preoperative diagnosis, we compared the "top three list" of differential diagnosis (the first, second, and third diagnoses according to the WHO 2007 classification including grading) of 1061 brain tumors, prospectively and consecutively registered in preoperative case conferences from 2010 to the end of 2017, with postoperative pathology reports. Read More

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http://dx.doi.org/10.25259/SNI_5_2020DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC7193216PMC

Feasibility, safety, and outcomes of a stratified fast-track care trajectory in pituitary surgery.

Endocrine 2020 May 2. Epub 2020 May 2.

Center for Endocrine Tumors Leiden, Leiden University Medical Center, Leiden, The Netherlands.

Objective: Discharge policies concerning hospitalization after endoscopic pituitary tumor surgery are highly variable. A few studies support fast-track discharge; however, this is not commonplace. Our goal was to report the transition to and evaluate the feasibility, safety, clinical- and patient-reported outcomes and costs of fast-track care in pituitary surgery. Read More

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http://dx.doi.org/10.1007/s12020-020-02308-2DOI Listing

The epidemiology of aggressive pituitary tumors (and its challenges).

Rev Endocr Metab Disord 2020 May 2. Epub 2020 May 2.

Department of Endocrinology, Leiden University Medical Center, Leiden, Netherlands.

Pituitary tumors are not rare if prevalence rates from autopsy or radiological series are considered; approximately 0.5% of all pituitary adenomas will come to medical attention. Less than 0. Read More

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http://dx.doi.org/10.1007/s11154-020-09556-7DOI Listing

Juvenile Nasal Angiofibroma on Ga-DOTANOC PET/CT: Exploring Theranostic Avenues.

Indian J Nucl Med 2020 Apr-Jun;35(2):176-177. Epub 2020 Mar 12.

Department of Nuclear Medicine, All India Institute of Medical Sciences, New Delhi, India.

Somatostatin (SST) cell surface receptors (SSTRs) are expressed in many different malignant, benign, and neuroendocrine tumors. SSTRs are also expressed in the endothelium of human vessels during angiogenesis and not in the nonproliferating vessels. We present a case of 19-year-old boy with juvenile nasal angiofibroma (JNA), who underwent Ga-DOTANOC PET/CT to explore SSTRs expression and theranostic potential. Read More

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http://dx.doi.org/10.4103/ijnm.IJNM_207_19DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC7182334PMC

Genetic background influences tumour development in heterozygous Men1 knockout mice.

Endocr Connect 2020 May;9(5):426-437

Academic Endocrine Unit, Radcliffe Department of Medicine, University of Oxford, Oxford Centre for Diabetes, Endocrinology and Metabolism (OCDEM), Churchill Hospital, Headington, Oxford, UK.

Multiple endocrine neoplasia type 1 (MEN1), an autosomal dominant disorder caused by MEN1 germline mutations, is characterised by parathyroid, pancreatic and pituitary tumours. MEN1 mutations also cause familial isolated primary hyperparathyroidism (FIHP), a milder condition causing hyperparathyroidism only. Identical mutations can cause either MEN1 or FIHP in different families, thereby implicating a role for genetic modifiers in altering phenotypic expression of tumours. Read More

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http://dx.doi.org/10.1530/EC-20-0103DOI Listing

Comparative analysis of rhinologic outcomes in Cushing disease and non-functioning pituitary adenoma in patients submitted to endoscopic endonasal transsphenoidal surgery.

Eur Arch Otorhinolaryngol 2020 Apr 28. Epub 2020 Apr 28.

Department of Otorhinolaryngology and Head and Neck Surgery, Faculty of Medical Sciences, State University of Campinas, Tessália Viera de Camargo, 126, Campinas, São Paulo, 13083-887, Brazil.

Purpose: Adrenocorticotropic hormone (ACTH) secreted by pituitary tumors lead to changes in nasal cavity anatomy and physiology. As a consequence of hormonal alteration, there is an abnormal soft tissue and an increased capillary fragility, inducting to a thinner mucosa that acts in the healing process. We compared post-operative nasal alterations in patients with Cushing's disease versus patients with non-functioning macroadenomas who underwent endoscopic endonasal transsphenoidal surgery. Read More

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http://dx.doi.org/10.1007/s00405-020-05974-0DOI Listing
April 2020
1.608 Impact Factor

Response of thyrotropin-secreting pituitary tumors to preoperative lanreotide therapy. Report of two cases.

Neuro Endocrinol Lett 2020 Apr 27;41(1). Epub 2020 Apr 27.

First Department of Internal Medicine, School of Medicine, University of Occupational and Environmental Health, Kitakyushyu-shi, 807-8555, Japan.

Case 1 was a 51-year-old man diagnosed with thyrotropin (TSH)-secreting pituitary tumor. The octreotide loading test showed suppression of TSH secretion. Treatment with lanreotide preoperatively at 90 mg/month resulted in normalization of thyroid function. Read More

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Activating genomic alterations in the Gs alpha gene (GNAS) in 274 694 tumors.

Genes Chromosomes Cancer 2020 Apr 26. Epub 2020 Apr 26.

Sackler School of Medicine, Tel-Aviv University, Tel-Aviv, Israel.

Activating point mutations in two codons (R201 and Q227) in the alpha subunit of the stimulatory GTP binding protein (GNAS) gene-coined gsp mutations-were originally reported in growth hormone secreting pituitary adenomas. In these tumor types, gsp activating mutations were associated with uncontrolled intracellular cAMP accumulation leading to cellular proliferation and tumor formation. Since the original description of gsp mutations in pituitary and later thyroid neoplasia, many more tumors were genotyped for these specific activating mutations. Read More

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http://dx.doi.org/10.1002/gcc.22854DOI Listing

Correspondence: Pituitary tumors and diaphragma sellae. Re: Cabuk B, Anik I, Kokturk S, Ceylan S, Ceylan S: Anatomic and histologic features of diaphragma sellae that effects the suprasellar extension. Journal of Clinical Neuroscience 71(2020) 234-244.

Authors:
Atul Goel

J Clin Neurosci 2020 Apr 23. Epub 2020 Apr 23.

Department of Neurosurgery, Seth G.S. Medical College and K.E.M Hospital, Parel, Mumbai 400012, India. Electronic address:

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http://dx.doi.org/10.1016/j.jocn.2020.04.093DOI Listing