50,051 results match your criteria Papillary Tumors

Molecular features of pancreaticobiliary neoplasms: Implications for diagnosis, prognostication, and therapy selection.

Diagn Cytopathol 2022 Jun 25. Epub 2022 Jun 25.

The Department of Pathology and Anatomical Sciences, University of Missouri, Columbia, Missouri, USA.

Background: Molecular diagnostics has impacted the diagnosis, prediction of prognosis, and selection of targeted therapy for many tumor types. While pulmonary adenocarcinomas and melanomas are among the neoplasms most associated with molecular diagnostics and targeted therapy, malignancies of the pancreaticobiliary system have also been impacted by precision medicine.

Methods: We undertook an electronic search using PubMed and Embase to review the published literature to determine what forms of molecular testing, mutations and oncogenetic pathways are associated with neoplasms of the pancreaticobiliary system. Read More

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Selective delipidation of Mycobacterium bovis BCG retains antitumor efficacy against non-muscle invasive bladder cancer.

Cancer Immunol Immunother 2022 Jun 24. Epub 2022 Jun 24.

Experimental Developmental Therapeutics (EDT) Program, Mays Cancer Center at UT Health MD Anderson, San Antonio, TX, USA.

Purpose: Repeated instillations of bacillus Calmette et Guérin (BCG) are the gold standard immunotherapeutic treatment for reducing recurrence for patients with high-grade papillary non-muscle invasive bladder cancer (NMIBC) and for eradicating bladder carcinoma-in situ. Unfortunately, some patients are unable to tolerate BCG due to treatment-associated toxicity and bladder removal is sometimes performed for BCG-intolerance. Prior studies suggest that selectively delipidated BCG (dBCG) improves tolerability of intrapulmonary delivery reducing tissue damage and increasing efficacy in preventing Mycobacterium tuberculosis infection in mice. Read More

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BRAF V600E protect from cell death via inhibition of the mitochondrial permeability transition in papillary and anaplastic thyroid cancers.

J Cell Mol Med 2022 Jun 24. Epub 2022 Jun 24.

Institute for Translational Medicine, The Affiliated Hospital of Qingdao University, College of Medicine, Qingdao University, Qingdao, China.

BRAF T1799A mutation is the most common genetic variation in thyroid cancer, resulting in the production of BRAF V600E mutant protein reported to make cells resistant to apoptosis. However, the mechanism by which BRAF V600E regulates cell death remains unknown. We constructed BRAF V600E overexpression and knockdown 8505C and BCPAP papillary and anaplastic thyroid cancer cell to investigate regulatory mechanism of BRAF V600E in cell death induced by staurosporine (STS). Read More

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Acta Endocrinol (Buchar) 2021 Oct-Dec;17(4):455-461

Dept. of Pathology, Trakya University, Faculty of Medicine, Ankara, Turkey.

Context: Papillary thyroid carcinoma(PTC)s are the indolent progressive tumours. Survivin is a unique bifunctional protein with cell cycle regulation and apoptosis inhibition. The expression of this protein has been shown to be increased in thyroid tumours correlated with aggressive behavior from well differentiated to anaplastic. Read More

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Increased prevalence of colorectal neoplasia in patients with intraductal papillary mucinous neoplasms.

Therap Adv Gastroenterol 2022 16;15:17562848221104306. Epub 2022 Jun 16.

Department of Gastroenterology, Tel Aviv Sourasky Medical Center, Tel Aviv, Israel.

Background: The association between intraductal papillary mucinous neoplasms (IPMNs) and colorectal cancer (CRC) and polyps is controversial.

Objectives: To compare the prevalence of CRC and colorectal polyps among patients with IPMN and matched average risk individuals.

Methods: A match cross-sectional historical study comparing colonoscopy findings of 310 patients with IPMN cysts who underwent at least one colonoscopy examination from 2004 through 2019, with 310 age- and gender-matched average risk participants who underwent a screening colonoscopy. Read More

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TAVR for severe aortic stenosis and papillary fibroelastoma in a high-risk setting.

Br J Cardiol 2021 22;28(2):23. Epub 2021 Apr 22.

Cardiac Surgeon, and Division Head, Division of Cardiac Surgery St. Michael's Hospital and Li Ka Shing Knowledge Institute, University of Toronto, Toronto, Ontario, M5B 1W8, Canada.

Papillary fibroelastomas (PFE) are rare benign cardiac tumours mainly originating on aortic and mitral valvular surfaces. Management is individualised, but most recommend surgical excision due to thromboembolic risk. We report a 75-year-old man with symptomatic severe aortic stenosis compounded by PFE. Read More

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High Myoinositol on Proton MR Spectroscopy Could Be a Potential Signature of Papillary Tumors of the Pineal Region-Case Report of Two Patients.

Brain Sci 2022 Jun 19;12(6). Epub 2022 Jun 19.

Institut de Diagnóstic per la Imatge (IDI), Department of Radiology, Hospital de Bellvitge, 08908 L'Hospitalet de Llobregat, Barcelona, Spain.

Papillary tumor of the pineal region (PTPR) is an uncommon entity in which a presurgical suspicion may be crucial for patient management. Maximal safe neurosurgical resection is of choice when PTPR is suspected, whereas non-surgical approaches can be considered in other tumors of the pineal region, such as pineocytoma or concrete subtypes of germ-cell tumors. In general terms, imaging features of tumors of the pineal region have been reported to be unspecific. Read More

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Advances in Thyroid Carcinoma.

Iñigo Landa

Cancers (Basel) 2022 Jun 13;14(12). Epub 2022 Jun 13.

Division of Endocrinology, Diabetes and Hypertension, Department of Medicine, Brigham and Women's Hospital & Harvard Medical School, Boston, MA 02115, USA.

"Thyroid cancer" encompasses a heterogeneous group of tumors that range from the predominant papillary thyroid cancer (PTC) subtype, which shows excellent survival rates, to the poorly differentiated (PDTC) and anaplastic thyroid cancer (ATC) forms, accounting for most of the disease-related morbidity and mortality [... Read More

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Circulating microRNAs and Clinicopathological Findings of Papillary Thyroid Cancer: A Systematic Review.

In Vivo 2022 Jul-Aug;36(4):1551-1569

Department of General and Endocrine Surgery, University College London Hospitals, London, U.K.

Background/aim: Papillary thyroid cancer (PTC) is the most common endocrine malignancy with a rising incidence. There is a need for a non-invasive preoperative test to enable better patient counselling. The aim of this systematic review was to investigate the potential role of circulating microRNAs (miRNAs) in the diagnosis and prognosis of PTC. Read More

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Prediction of EVT6-NTRK3-Dependent Papillary Thyroid Cancer Using Minor Expression Profile.

Bull Exp Biol Med 2022 Jun 23. Epub 2022 Jun 23.

Institute of Chemical Biology and Fundamental Medicine, Siberian Division of the Russian Academy of Sciences, Novosibirsk, Russia.

Solid tumors resulting from oncogenic stimulation of neurotrophin receptors (TRK) by chimeric proteins are a group of rare tumors of various localization that respond to therapy with targeted drugs entrectinib and larotrectinib. The standard method for detecting chimeric TRK genes in tumor samples today is considered to be next generation sequencing with the determination of the prime structure of the chimeric transcripts. We hypothesized that expression of the chimeric tyrosine kinase proteins in tumors can determine the specific transcriptomic profile of tumor cells. Read More

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[Chilean consensus on diagnosis and management of pancreatic cystic neoplasms].

Rev Med Chil 2021 Dec;149(12):1773-1786

Departamento de Cirugía Digestiva, Escuela de Medicina, Pontificia Universidad Católica de Chile, Santiago, Chile.

Pancreatic cystic neoplasms (PCN) are frequently detected on abdominal images performed for non-pancreatic indications. Their prevalence in asymptomatic population ranges from 2.7 to 24. Read More

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December 2021

Analysis of Risk Factors Associated With Central Lymph Node Metastasis in Papillary Thyroid Carcinoma With cT1N0 Stage.

Front Endocrinol (Lausanne) 2022 3;13:880911. Epub 2022 Jun 3.

Department of Ultrasound Medicine, The First Affiliated Hospital of University of Science and Technology of China Anhui Provincial Hospital, Hefei, China.

Aim: Annual T1 stage papillary thyroid carcinoma (PTC) incidence rates continue to rise, yet the optimal treatment for this cancer type remains controversial. Central lymph node metastasis (CLNM) is a critical determinant in the context of treatment decision-making. While several prior studies have evaluated patients with clinica l T1a(cT1a) stage PTC, there have been fewer analyses of clinical T1b(cT1b) disease to date. Read More

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Can we predict the progression of premalignant pancreatic cystic tumors to ductal adenocarcinoma?

Future Oncol 2022 Jun 22. Epub 2022 Jun 22.

Imperial College London, Exhibition Road, South Kensington, London, SW7 2BU, UK.

Pancreatic ductal adenocarcinoma (PDAC) is the most prevalent malignant pancreatic tumor. Few studies have shown how often PDACs arise from cystic precursor lesions. This special report aims to summarize the evidence on the progression of precancerous lesions to PDAC. Read More

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Management dilemma in metastatic papillary thyroid carcinoma.

N Z Med J 2022 Jun 10;135(1556):127-131. Epub 2022 Jun 10.

Department of Otolaryngology-Head and Neck Surgery, Waikato Hospital, New Zealand.

Papillary thyroid cancer is the most common type of well-differentiated thyroid cancer. It is associated with a survival rate greater than 95% with appropriate treatment, particularly in younger patients. We present the unique case of a 25-year-old male with severe Autistic spectrum disorder (ASD) with a right level V neck mass of several months. Read More

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The probability of residual tumor detection in the second transurethral resection of pT1 urothelial bladder cancer according to the risk factors.

Actas Urol Esp (Engl Ed) 2022 Jun 17. Epub 2022 Jun 17.

Department of Urology, Faculty of Medicine, Istanbul Medeniyet University, Istanbul, Turkey.

Objective: To analyze the predictive factors for residual tumors in the second resection after the initial transurethral resection of bladder tumor (TUR-BT) in patients with pT1 tumors and to develop a simple method to predict the probability of residual tumor detection.

Material And Methods: Patients with pT1 bladder cancer who underwent a second resection within two to six weeks after the initial TUR-BT were included in our retrospective study. The patients' demographics and the tumor characteristics of the initial and second resections were recorded. Read More

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Mixed neuroendocrine-non-neuroendocrine neoplasm of the gallbladder: case report and literature review.

Diagn Pathol 2022 Jun 17;17(1):51. Epub 2022 Jun 17.

Hospital Information Center of Heilongjiang Province Affiliated to Harbin Institute of Technology, Harbin, 150001, Heilongjiang Province, China.

Background: Mixed neuroendocrine-non-neuroendocrine neoplasms (MiNENs) of the gallbladder are rare malignancies. Here we presented two cases and reviewed the related literature.

Case Presentation: Our two patients were postoperatively diagnosed with gallbladder MiNENs, which pathologically consisted of a large cell neuroendocrine carcinoma and papillary adenocarcinoma. Read More

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Sinonasal mixed transitional epithelial-seromucinous papillary glandular neoplasms with BRAF p.V600E mutations - sinonasal analogues to the sialadenoma papilliferum family tumors.

Virchows Arch 2022 Jun 18. Epub 2022 Jun 18.

Department of Pathology, University of Pittsburgh Medical Center, Pittsburgh, PA, USA.

Sinonasal non-intestinal type adenocarcinoma (non-ITAC) is a heterogeneous category that may benefit from improved taxonomy. With the recognition that most non-ITAC are phenotypically seromucinous, stratification may be improved by applying salivary type morphologic criteria and molecular findings. We report two cases of papillary seromucinous adenocarcinoma with sinonasal papilloma-like surface components that show histologic and molecular features analogous to the salivary sialadenoma papilliferum family of tumors. Read More

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Clinical and prognosis value of the number of metastatic lymph nodes in patients with papillary thyroid carcinoma.

BMC Surg 2022 Jun 20;22(1):235. Epub 2022 Jun 20.

Department of Breast and Thyroid Surgery, Renmin Hospital of Wuhan University, 17th Tiyu Street, Wuhan, Hubei, 430060, The People's Republic of China.

Objective: It has been reported that papillary thyroid carcinoma (PTC) patients with lymph node metastasis (LNM) are largely associated with adverse outcomes. The present study aimed to assess the correlation between the number of metastatic lymph nodes (NMLNs) and clinical prognosis in patients with PTC.

Methods: We retrospectively reviewed the medical records of patients with PTC who underwent initial thyroid cancer surgery in Renmin Hospital of Wuhan University between 2017 and 2019. Read More

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Potential Impact of Body Mass Index on the Clinical Outcome of Papillary Thyroid Cancer After High-Dose Radioactive Iodine Therapy.

Front Endocrinol (Lausanne) 2022 26;13:870530. Epub 2022 May 26.

Department of Nuclear Medicine, The Second Hospital, Cheeloo College of Medicine, Shandong University, Jinan, China.

Context: Obesity has been reported as a potential risk factor for the aggressiveness of papillary thyroid cancer (PTC), but the data gathered so far are conflicting.

Objective: The aim of our study was to evaluate the relationship between body mass index (BMI) and aggressiveness of PTC at the diagnosis and clinical outcome.

Methods: A total of 337 patients who underwent radioactive iodine (RAI) therapy between March 2017 and May 2020 were recruited. Read More

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Extrathyroidal Extension Prediction of Papillary Thyroid Cancer With Computed Tomography Based Radiomics Nomogram: A Multicenter Study.

Front Endocrinol (Lausanne) 2022 1;13:874396. Epub 2022 Jun 1.

Department of Otorhinolaryngology, Head and Neck Surgery, Yantai Yuhuangding Hospital, Qingdao University, Yantai, China.

Objectives: To develop and validate a Computed Tomography (CT) based radiomics nomogram for preoperative predicting of extrathyroidal extension (ETE) in papillary thyroid cancer (PTC) patients.

Methods: A total of 153 patients were randomly assigned to training and internal test sets (7:3). 46 patients were recruited to serve as an external test set. Read More

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FTO Prevents Thyroid Cancer Progression by SLC7A11 m6A Methylation in a Ferroptosis-Dependent Manner.

Front Endocrinol (Lausanne) 2022 3;13:857765. Epub 2022 Jun 3.

Thyroid Surgery, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China.

N6 methyladenosine (m6A) modification serves as a novel epigenetic regulatory mechanism that is heavily implicated in the heredity of tumors. Meanwhile, fat mass and obesity-associated protein (FTO) has the potential to affect the regulation of m6A modification in the mRNA of key oncogenes as well as tumor suppressor genes that facilitate tumor progression. In our study, FTO was downregulated in papillary thyroid carcinoma (PTC) tissues. Read More

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A Case of a gastropancreatic fistula in the setting of intraductal papillary mucinous neoplasms.

Radiol Case Rep 2022 Aug 11;17(8):2874-2877. Epub 2022 Jun 11.

St. Joseph's University Medical Center, Department of Gastroenterology, 703 Main Street, Paterson, NJ 07503 USA.

Intraductal papillary mucinous neoplasms (IPMN) are mucin producing tumors which arise from epithelial cells of the main pancreatic duct, pancreatic branch ducts, or both. They are characterized by mucin-producing columnar cells, papillary ductal proliferation, cyst formation, and varying degrees of dysplasia. IPMNs are classified as main duct or branch duct based upon the pancreatic duct anatomy which the IPMN is arising from. Read More

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Papillary mucinous cystadenoma of the kidney: Case report and review of literature.

Exp Ther Med 2022 Jul 18;24(1):451. Epub 2022 May 18.

Department of Urology, Cangzhou People's Hospital, Cangzhou, Hebei 061000, P.R. China.

Epithelial tumors that originate from the kidney are uncommon. The majority of cases reported in the literature are malignant, with <1% of adenocarcinomas. Adenomas are even rarer. Read More

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Malignant transformation of Warthin's tumor into squamous cell carcinoma: A case report.

Oncol Lett 2022 Jul 12;24(1):201. Epub 2022 May 12.

Department of Radiotherapy, Xiaoshan Affiliated Hospital of Wenzhou Medical University, Hangzhou, Zhejiang 311200, P.R. China.

Malignant transformation of Warthin's tumor into squamous cell carcinoma is rare. The present study reported on a case of a 67-year-old male patient diagnosed with this condition. Microscopically, the tumor was mainly composed of squamous cell carcinoma and lymphoid stroma. Read More

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Clonal Distribution and Intratumor Heterogeneity of the TCR Repertoire in Papillary Thyroid Cancer With or Without Coexistent Hashimoto's Thyroiditis.

Front Immunol 2022 3;13:821601. Epub 2022 Jun 3.

Key Laboratory of Carcinogenesis and Translational Research (Ministry of Education/Beijing), Department of Head & Neck Surgery, Peking University Cancer Hospital & Institute, Beijing, China.

The intratumor heterogeneity (ITH) of the amount and TCR repertoires of tumor infiltrating lymphocytes (TILs) in PTC with and without coexistent Hashimoto's thyroiditis (HT) are unclear. Here, we investigated the amount of T cells in tumor and corresponding normal tissues by immunohistochemical staining on 80 tumor samples and 40 normal samples from 40 patients. The immune repertoire of T cells was identified on 24 tumor samples and 12 normal samples from 12 patients using TCR high-throughput sequencing. Read More

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Analysis of the Clinical Value of Delphian Lymph Node Metastasis in Papillary Thyroid Carcinoma.

J Oncol 2022 10;2022:8108256. Epub 2022 Jun 10.

Department of Thyroid and Breast Surgery, The First People's Hospital of Yunnan Province, Kunming, China.

Purpose: Delphian lymph node (DLN) is often involved in metastasis of malignant head and neck tumors. This study evaluates the predictive utility of the DLN and the clinicopathological factors related to DLN metastasis in individuals suffering from papillary thyroid carcinoma (PTC). . Read More

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MRI-Based Pancreatic Atrophy Is Associated With Malignancy or Invasive Carcinoma in Intraductal Papillary Mucinous Neoplasm.

Front Oncol 2022 3;12:894023. Epub 2022 Jun 3.

Department of Radiology, Affiliated Hospital of Nanjing University of Chinese Medicine, Nanjing, China.

Background: Abrupt change in the caliber of the main pancreatic duct (MPD) with distal pancreatic atrophy (PA) was considered as one of worrisome features in the International Association of Pancreatology guideline and American College of Gastroenterology guideline for the management of intraductal papillary mucinous neoplasms (IPMNs). However, this feature was not included in other guidelines. Moreover, the association between PA alone and malignancy in IPMNs has not been fully evaluated. Read More

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Differential Diagnosis of Type 1 and Type 2 Papillary Renal Cell Carcinoma Based on Enhanced CT Radiomics Nomogram.

Front Oncol 2022 3;12:854979. Epub 2022 Jun 3.

Department of Radiology, The First Affiliated Hospital of Anhui Medical University, Hefei, China.

Objectives: To construct a contrast-enhanced CT-based radiomics nomogram that combines clinical factors and a radiomics signature to distinguish papillary renal cell carcinoma (pRCC) type 1 from pRCC type 2 tumours.

Methods: A total of 131 patients with 60 in pRCC type 1 and 71 in pRCC type 2 were enrolled and divided into training set (n=91) and testing set (n=40). Patient demographics and enhanced CT imaging characteristics were evaluated to set up a clinical factors model. Read More

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Do Clear Cell Changes in Oral Squamous Cell Carcinoma Warrant It Being Recognised as a Variant?

Cureus 2022 May 16;14(5):e25057. Epub 2022 May 16.

Oral and Maxillofacial Pathology, Ragas Dental College and Hospitals, Chennai, IND.

Histological variants of oral squamous cell carcinoma (OSCC) include verrucous, basaloid, spindle cell, adenosquamous, papillary, and acantholytic types. Clear-cell changes in OSCC are rare. We report a case of a 65-year-old male Chinese patient who presented with a swelling in the lower-left mandible for three weeks, causing ill-fitting of his lower denture and an ulcer on the floor of the mouth. Read More

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