3,632 results match your criteria Benign Skull Tumors

Critical review of multidisciplinary approaches for managing sinonasal tumors with orbital involvement.

Acta Otorhinolaryngol Ital 2021 Apr;41(Suppl. 1):S76-S89

Division of Otorhinolaryngology, Department of Biotechnology and Life Sciences, University of Insubria, Varese, Italy.

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DEK-AFF2 Carcinoma of the Sinonasal Region and Skull Base: Detailed Clinicopathologic Characterization of a Distinctive Entity.

Am J Surg Pathol 2021 May 27. Epub 2021 May 27.

Departments of Pathology Oncology Ophthalmology Otolaryngology-Head and Neck Surgery, The Johns Hopkins University School of Medicine, Baltimore, MD Institute of Pathology, Friedrich-Alexander-University Erlangen-Nürnberg, University Hospital, Erlangen, Germany Department of Laboratory Medicine and Pathobiology, University of Toronto Department of Pathology & Laboratory Medicine, Mount Sinai Hospital Department of Pathology, Sunnybrook Health Sciences Centre Department of Pathology, University Health Network, Toronto, ON Department of Pathology and Laboratory Medicine, University of Kentucky College of Medicine, Lexington, KY Department of Pathology, University of Texas Southwestern Medical Center, Dallas, TX Department of Pathology, Kaiser Permanente Walnut Creek Medical Center, Walnut Creek, CA Department of Head and Neck Pathology, Guy's and St Thomas' NHS Foundation Trust, London, UK.

A novel DEK-AFF2 fusion was recently reported in 4 nonkeratinizing squamous cell carcinomas of the sinonasal region and skull base, including 1 with exceptional response to immunotherapy, but it is not yet clear if this rearrangement defines a unique clinicopathologic category or represents a rare event. This study aims to characterize a larger cohort of carcinomas with DEK-AFF2 fusions to assess whether they truly constitute a distinctive entity. Among 27 sinonasal and skull base nonkeratinizing squamous cell carcinoma that were negative for human papillomavirus and Epstein-Barr virus, RNA sequencing identified DEK-AFF2 fusions in 13 cases (48%). Read More

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Low-grade fibromyxoid sarcoma of the parapharyngeal space: an unusual location.

BMJ Case Rep 2021 May 24;14(5). Epub 2021 May 24.

Pathology & Microbiology, Aga Khan University Hospital, Karachi, Sindh, Pakistan.

Low-grade fibromyxoid sarcoma (LGFMS) is an uncommon soft-tissue malignancy. LGFMS preferentially affects trunks and extremities of young adults; however, occasional cases have been reported in different sites of head and neck region including oral cavity, larynx and oropharynx. LGFMS usually exhibit areas of collagenised and myxoid stroma with appearance of spindle cells in whorling pattern. Read More

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Factors Associated with and Temporal Trends in the Use of Radiation Therapy for the Treatment of Pituitary Adenoma in the National Cancer Database.

J Neurol Surg B Skull Base 2021 Jun 4;82(3):285-294. Epub 2019 Oct 4.

Department of Otorhinolaryngology Head and Neck Surgery, Hospital of the University of Pennsylvania, Philadelphia, Pennsylvania, United States.

 Radiation therapy represents an uncommon but important component of treatment plans for some pituitary adenomas (PAs). Although radiation therapy has been used to treat pituitary adenomas for over a century, general trends in the usage of radiation therapy for this purpose have not been reviewed. Additionally, there are few large studies evaluating how radiation therapy is used for the treatment of these benign tumors. Read More

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Endoscopic-Assisted Keyhole Resection of a Recurrent Epidermoid Tumor: 2-Dimensional Operative Video.

Oper Neurosurg (Hagerstown) 2021 Apr 30. Epub 2021 Apr 30.

Epidermoid tumors are benign lesions. Surgical resection is the only treatment option available for these lesions.1 The surgical approach should be tailored to the clinical and anatomic findings to achieve radical resection, preferably total removal of the content and the capsule to prevent recurrences. Read More

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Pleomorphic adenoma of hard palate: a case report.

Pan Afr Med J 2021 9;38:146. Epub 2021 Feb 9.

Département d´Odontologie Chirurgicale, Faculté de Médecine Dentaire de Rabat, Université Mohammed V, Rabat, Maroc.

Pleomorphic adenoma is a benign mixed tumor, which is composed of myoepithelial and epithelial cells. A fibrous capsule separates these cells from the surrounding tissues. Pleomorphic adenoma is the most common salivary gland tumour accounting for 40-70% of all major and minor salivary gland tumours. Read More

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Brain-invasive meningiomas: molecular mechanisms and potential therapeutic options.

Brain Tumor Pathol 2021 Apr 26. Epub 2021 Apr 26.

Department of Neurosurgery, Xiangya Hospital, Central South University, 87 Xiangya Road, Changsha, 410008, Hunan, People's Republic of China.

Meningiomas are the most commonly diagnosed benign intracranial adult tumors. Subsets of meningiomas that present with extensive invasion into surrounding brain areas have high recurrence rates, resulting in difficulties for complete resection, substantially increased mortality of patients, and are therapeutically challenging for neurosurgeons. Exciting new data have provided insights into the understanding of the molecular machinery of invasion. Read More

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Large irritation fibroma of hard palate: a case report of a rare clinical entity.

Pan Afr Med J 2021 19;38:61. Epub 2021 Jan 19.

Department of Otorhinolaryngology, Giannitsa General Hospital, Pella, Greece.

Fibromas are benign tumors of connective tissue common in the oral cavity but rare on hard palate. This paper reports on an asymptomatic, slowly growing mass on the hard palate of a 90-year-old lady, with a reported use of denture for two decades. The patient presented with a 2. Read More

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Aggressive Progression of a WHO Grade I Meningioma of the Posterior Clinoid Process: An Illustration of the Risks Associated With Observation of Skull Base Meningiomas.

Cureus 2021 Mar 19;13(3):e14005. Epub 2021 Mar 19.

Nerosurgery, Prince of Wales Private Hospital, Sydney, AUS.

Benign, small, and asymptomatic World Health Organization grade I meningiomas are usually managed expectantly with surveillance imaging with the assumption that they are predictably slowing growing. In this paper, we report the case of an incidentally discovered small, right-sided posterior clinoid meningioma in a 53-year-old female. The tumor was managed conservatively but an annual surveillance magnetic resonance imaging demonstrated that the meningioma had an unexpected significant growth impinging on the brainstem, requiring surgical resection and radiosurgery for residual tumor. Read More

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Melanotic Neuroectodermal Tumor of Infancy at Skull: Rare and Rapid-Growing Tumor but Histologically Benign.

Pediatr Neurosurg 2021 16;56(3):306-311. Epub 2021 Apr 16.

Division of Pediatric Neurosurgery, Department of Surgery, Queen Sirikit National Institute of Child Heath, Bangkok, Thailand.

Introduction: Melanotic neuroectodermal tumor of infancy (MNTI) is a rare and rapid-growing tumor. However, a neurosurgeon should not overlook this entity when differential diagnosing rapid-growing skull tumor because its histology nature is just benign, and the prognosis is much better than other malignant tumors.

Case Presentation: We reported the case of a 5-month old male presenting with progressive rapid-growing skull tumor which became 10 cm in diameter in only 5 months compared to the normal head circumference at birth. Read More

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Hemorrhagic Giant Cell Tumor of the Occipital Skull Base: A Case Report and Literature Review.

Cureus 2021 Mar 11;13(3):e13832. Epub 2021 Mar 11.

Department of Pediatric Surgery, Division of Pediatric Neurosurgery, McGovern Medical School at The University of Texas Health Science Center at Houston, Houston, USA.

Giant cell tumor of bone is a benign but locally aggressive osteolytic neoplasm that represents 3% to 5% of all primary bone tumors, primarily found at the epiphyses of long bones. Less than 1% are of calvarial origin. Herein, we report a rare case of a nine-year-old girl with a hemorrhagic giant cell tumor of the left occipital skull base. Read More

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Petrosal Approach With Preservation of the Superior Petrosal Sinus (the Graceful Petrosal) for Resection of Giant Trigeminal Schwannoma: 2-Dimensional Operative Video.

Oper Neurosurg (Hagerstown) 2021 04;20(5):E342-E343

Department of Neurosurgery, Brigham and Women's Hospital, Harvard Medical School, Boston, Massachusetts.

Trigeminal schwannomas are benign tumors amendable to curative surgical resection.1 Excellent outcomes, with preservation and improvement of cranial nerve function, including trigeminal nerve function, have been reported with microsurgical resection through skull base approaches.2 Dumbell shaped tumors, involving the middle and posterior fossa, are more challenging. Read More

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Neurofibroma of the hard palate.

BMJ Case Rep 2021 Apr 7;14(4). Epub 2021 Apr 7.

Oral and Maxillofacial Surgery, Pinderfields Hospital, Mid Yorkshire Hospitals NHS Trust, Wakefield, UK.

Neurofibromas are defined as benign tumours arising from peripheral nerve sheaths. Few intraoral palatal cases have been reported. Neurofibromas can occur as part of neurofibromatosis, type 1 (NF1) or type 2 (NF2). Read More

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Surgical Outcome of Trigeminal Schwannomas.

Cancers (Basel) 2021 Mar 15;13(6). Epub 2021 Mar 15.

Department of Neurosurgery, Klinikum rechts der Isar, School of Medicine, Technical University Munich, 81675 Munich, Germany.

(1) Background: As resection of trigeminal schwannomas is challenging, due to anatomical involvement of the anterior, middle and posterior fossa, the appropriate approach is important. We report our experience with surgical resection of trigeminal schwannomas by simple and classic skull-base approaches. (2) Methods: We performed a retrospective single-center study including patients who underwent surgery for trigeminal schwannoma tumors between June 2007 and May 2020, concentrating on surgical technique, extent of resection, postoperative outcome and complications. Read More

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[Analysis of efficacy of coblation assisted endoscope system for the treatment of parapharyngeal space tumors with transoral approach].

Lin Chung Er Bi Yan Hou Tou Jing Wai Ke Za Zhi 2021 Mar;35(3):204-208

Department of Otorhinolaryngology,the First Affiliated Hospital,Nanjing Medical University,Nanjing,210029,China.

To summarize and analyze the feasibility, safety and efficacy of parapharyngeal space surgery assisted by coblation and endoscopic system with transoral approach. The data of 20 patients with parapharyngeal space tumors were retrospectively analyzed. All the patients underwent CT and/or MRI examination before surgery, and all underwent transoral approach assisted by coblation and endoscopic systems. Read More

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Masses of the Lacrimal Gland: Evaluation and Treatment.

J Neurol Surg B Skull Base 2021 Feb 18;82(1):100-106. Epub 2021 Feb 18.

Department of Ophthalmology, Duke University Medical Center, Durham, North Carolina, United States.

Lacrimal gland lesions account for approximately 9 to 10% of all biopsied orbital masses. Potential causes include nongranulomatous and granulomatous inflammation, autoimmune disease, lymphoproliferative disorders, benign epithelial proliferation, malignant neoplasia, and metastatic disease. Inflammatory lesions and lymphoproliferative disorders are the most common and may be unilateral or bilateral; they may also be localized to the orbit or associated with systemic disease. Read More

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February 2021

Optic Nerve Gliomas.

J Neurol Surg B Skull Base 2021 Feb 19;82(1):91-95. Epub 2021 Jan 19.

Division of Hematology/Oncology, Department of Pediatrics, Albany Medical College, Slingerlands, New York, United States.

 To describe the diagnostic and management features of optic nerve gliomas.  Literature review.  Optic nerve gliomas are generally benign in the pediatric age group although they are usually malignant and aggressive in adults. Read More

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February 2021

"Single-step" resection and cranio-orbital reconstruction for spheno-orbital metastasis with custom made implant. A case report and review of the literature.

Int J Surg Case Rep 2021 Apr 11;81:105755. Epub 2021 Mar 11.

Department of Neurosurgery, Hospital "M. Bufalini" - AUSL della Romagna, 286 Viale Ghirotti, 47521 Cesena, Italy.

Introduction And Importance: Brain metastasis involving the skull base is a rare complication of malignant tumors. Besides radiotherapy, surgical treatment is a therapeutical option even though it may apply complex technical procedures that may delay complementary therapies. However, in recent days, the innovation of custom-made implants allows treating selected patients with fewer complications and better results. Read More

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Juvenile Psammomatoid Cemeto-ossifying Fibroma of Mandible: a Diagnostic dilemma.

BMJ Case Rep 2021 Mar 19;14(3). Epub 2021 Mar 19.

Dentistry-Oral & Maxillofacial Surgey, All India Institute of Medical Sciences-Raipur, Raipur, Tatibandh, India.

Psammomatoid Juvenile ossifying fibroma (PsJOF) is a rare benign fibro-osseous lesion characterised to grow to unusually large size very rapidly. Its usual presentation is in younger age group mostly children and predominately involving the Sino-Naso-Orbital region. Its aggressive nature gimmicks a malignant lesion but it is rather a benign lesion with a higher recurrence rate than the conventional ossifying fibroma but lacking metastatic potential. Read More

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A Rare Tumor of Clivus Masquerading as Pituitary Adenoma.

Asian J Neurosurg 2020 Oct-Dec;15(4):1091-1095. Epub 2020 Dec 21.

Department of Pathology, ICMR-National Institute of Pathology, New Delhi, India.

Giant cell tumors (GCT) are generally benign, commonly affecting young adults, with a slight preponderance in females. They are locally aggressive with a high rate of local recurrence. Most of them are found in the epiphysis of long bones, making the base of the skull a rare site. Read More

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December 2020

Extended Anterolateral Infralabyrinthine Transjugular Approach for Microsurgical Resection of Giant Glomus Vagale Tumor: Operative Video and Technical Nuances.

J Neurol Surg B Skull Base 2021 Feb 26;82(Suppl 1):S59-S60. Epub 2020 Nov 26.

Department of Otolaryngology-Head and Neck Surgery, Rutgers New Jersey Medical School, Neurological Institute of New Jersey, Saint Barnabas Medical Center, RWJ Barnabas Health, Newark, New Jersey, United States.

Glomus vagale tumor is a paraganglioma of the vagus nerve. It is a rare type of benign tumor that occupies the head and neck and skull base regions. Patients often present with lower cranial nerve dysfunctions such as difficulty swallowing, tongue weakness, and hoarseness. Read More

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February 2021

FDG PET/CT to Detect Incidental Findings in Patients With Hepatocellular Carcinoma-Additional Benefit for Patients Considered for Liver Transplantation?

Clin Nucl Med 2021 Jul;46(7):532-539

From the Clinic of Nuclear Medicine.

Purpose: FDG PET/CT has been described for noninvasive grading, detection of extrahepatic spread, and recurrence in hepatocellular carcinoma (HCC). As compared with localized imaging approaches (MRI, ultrasonography), FDG PET/CT not only focuses on the liver, but covers a long field of view from the base of the skull to the thighs, visualizing pathologic findings not related to HCC. The aims of this retrospective study were to (1) describe the frequency of relevant incidental findings on FDG PET/CT in HCC patients, (2) evaluate the impact on treatment strategy in HCC patients considered for liver transplantation, and (3) to discuss the role of FDG PET/CT in patients considered for transplantation in general. Read More

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Osteoblastoma of the mandible in a male patient: a case report.

Gen Dent 2021 Mar-Apr;69(2):60-63

Osteoblastoma is a rare benign osteoblastic tumor accounting for less than 1% of all bone tumors; approximately 10% to 12% of cases occur in the maxillofacial skeleton. This case report describes the clinical, imaging, and histopathologic findings of an atypical osteoblastoma occurring in the mandible of a 60-year-old man. The characteristics of the lesion and the differential diagnosis from other bone pathoses are reviewed. Read More

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Strategies for Optic Pathways Decompression for Extra-Axial Tumors or Intracranial Aneurysms: A Technical Note.

J Neurol Surg A Cent Eur Neurosurg 2021 Feb 28. Epub 2021 Feb 28.

Department of Neurosurgery, Fondazione Policlinico Universitario Agostino Gemelli IRCCS, Rome, Italy.

Background:  Different types of skull base tumors and intracranial aneurysms may lead to compression of the optic pathways. Since most of them are biologically benign conditions, the first aim of surgery is preservation of optic nerves rather than the oncologic radicality.

Materials And Methods:  Based on the progressive technical refinements coming from our institutional experience of optic nerve compression from aneurysms and extra-axial tumors, we analyzed the surgical steps to release nerves and chiasm during tumor debulking and aneurysm clipping. Read More

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February 2021

Skull base chondroblastoma presenting as a deep lobe parotid tumour.

BMJ Case Rep 2021 Feb 26;14(2). Epub 2021 Feb 26.

Otolaryngology, Central Manchester University Hospitals NHS Foundation Trust, Manchester, Greater Manchester, UK.

Chondroblastomas are rare, benign cartilage-producing primary bone tumours that account for 1% of all primary bone tumours. They are usually seen in young adult males and affect long tubulous bones such as the femur or humerus. Occurrences in non-tubular flat bones such as the craniofacial skeleton do occur but are seen in older adults. Read More

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February 2021

Treatment with endoscopic transnasal resection of hypothalamic pilocytic astrocytomas: a single-center experience.

BMC Surg 2021 Feb 25;21(1):103. Epub 2021 Feb 25.

Department of Neurosurgery, The First Affiliated Hospital of Chongqing Medical University, Chongqing, China.

Backgrounds: Pilocytic astrocytomas (PAs) are World Health Organization (WHO) grade I tumors, which are relatively common, and are benign lesions in children. PAs could originate from the cerebellum, optic pathways, and third ventricular/hypothalamic region. Traditional various transcranial routes are used for hypothalamic PAs (HPAs). Read More

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February 2021

Solitary Neurofibroma of the Hard Palate: A Case Report and Literature Review.

Am J Case Rep 2021 Feb 22;22:e929674. Epub 2021 Feb 22.

Dental and Oral Medical Center, Kurume University School of Medicine, Kurume, Fukuoka, Japan.

BACKGROUND Neurofibromas are benign tumors of neurological origin caused by the proliferation of Schwann cells and fibroblasts; they often occur in the skin and nerves as a symptom of von Recklinghausen disease. Solitary neurofibromas are also known to occur on their own, but solitary development in the hard palate is extremely rare and difficult to distinguish from schwannomas. The neural origin of solitary neurofibromas is also difficult to determine intraoperatively, and there have been no reports that clearly identify the neural origin of neurofibromas in the hard palate. Read More

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February 2021

Two-step treatment of a giant skull vault hemangioma: A rare case report and literature review.

Neurocirugia (Astur : Engl Ed) 2021 Feb 8. Epub 2021 Feb 8.

Department of Neurosurgery, 401 General Military Hospital of Athens, Kanellopoulou & Mesogeion Avenue, 11527 Athens, Greece.

Skull vault hemangiomas are benign vascular tumours of the calvaria that are usually asymptomatic or present as firm, painless lumps. We present a case of a 59-year-old female with a giant intraosseous calvarial hemangioma that was admitted in our department with a palpable mass over the left frontoparietal region, personality changes and impaired emotional and cognitive functions. The patient was treated with a two-step approach involving endovascular and surgical treatment, and suffered two rare, but recognized complications, a contrecoup intracerebral haemorrhage and valproate-induced stupor and parkinsonism. Read More

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February 2021

Pediatric Nasal Chondromesenchymal Tumors: Case Report and Review of the Literature.

Pediatr Neurosurg 2021 11;56(1):61-66. Epub 2021 Feb 11.

Department of Neurosurgery, University California San Diego, San Diego, California, USA,

Introduction: Nasal chondromesenchymal tumors (NCMT) are rare benign neoplasms that usually present in children <1 year of age. They can display rapid growth and significant local bony remodeling that can mimic a malignant process. Of the ∼50 published cases to date, few have documented the need for neurosurgical intervention. Read More

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February 2021

Short diameter may be a useful simple indicator of the tumor response in skull base meningiomas after conventionally fractionated stereotactic radiotherapy.

Eur Radiol 2021 Feb 10. Epub 2021 Feb 10.

Department of Radiation Oncology and Image-Applied Therapy, Kyoto University Graduate School of Medicine, 54 Shogoin Kawahara-cho, Sakyo-ku, Kyoto, 606-8507, Japan.

Objectives: The purpose of this study was to assess the radiological change patterns in skull base meningiomas after conventionally fractionated stereotactic radiotherapy (CFSRT) to determine a simple and valid method to assess the tumor response.

Materials And Methods: Forty-one patients with a benign skull base meningioma treated by CFSRT from March 2007 to August 2015 were retrospectively evaluated. We measured tumor volume (TV), long-axis diameter (LD), and short-axis diameter (SD) on both pre-treatment images and follow-up images of 1, 3, and 5 years after CFSRT, respectively. Read More

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February 2021