نتایج جستجو برای: malignant schwannoma

تعداد نتایج: 216128  

2017
Sohsuke Yamada Mari Kirishima Tsubasa Hiraki Michiyo Higashi Kazuhito Hatanaka Akihide Tanimoto

BACKGROUND Epithelioid schwannoma as a rare variant poses a challenge to all pathologists, as this uncommon entity is extremely difficult to conclusively diagnose by morphological analyses on a resected sample alone owing to its unique histopathological features. However, few papers have described the detailed clinicopathological characteristics of epithelioid schwannoma. CASE PRESENTATION A ...

Journal: :Medicina oral, patologia oral y cirugia bucal 2009
Krishnaraj Subhashraj Subramanian Balanand Subhashraj Pajaniammalle

Schwannoma is an intraoral rare, benign neoplasm derived from the nerve sheath of peripheral nerves. "Ancient schwannoma" shows histopathological features, such as degenerative changes and atypical nuclei, and may easily be confused with malignant neoplasms. Ancient schwannoma of the head and neck region is relatively uncommon and very few cases had been reported in the oral cavity. We present ...

Journal: :The Journal of the Japanese Association for Chest Surgery 1997

Journal: :International Journal of Case Reports and Images 2014

Journal: :The Journal of Thoracic and Cardiovascular Surgery 1977

Journal: :American journal of cancer research 2017
Jianman Guo Michael R Grovola Hong Xie Grace E Coggins Patrick Duggan Rukhsana Hasan Jiale Huang Danny W Lin Claire Song Gabriela M Witek Simon Berritt David C Schultz Jeffrey Field

Patients with Neurofibromatosis type 1 (NF1) and Neurofibromatosis type 2 (NF2) are predisposed to tumors of the nervous system. NF1 patients predominantly develop neurofibromas, and Malignant Peripheral Nerve Sheath Tumors (MPNST) while NF2 patients develop schwannomas and meningiomas. Here we quantified the drug sensitivities of NF1 and NF2 tumor cell lines in a high throughput platform. The ...

Journal: :Ceylon Journal of Otolaryngology 2021

The surgical transcervical approach creates a corridor to oropharynx and hypopharynx, which provides excellent exposure for removal of different lesions at these sites. suprahyoid pharyngotomy technique can be used in situations similar the lateral pharyngotomy, like management benign malignant tumors base tongue, posterior pharyngeal wall, excision lingual thyroid. Here, we have discussed deta...

Journal: :Histology and histopathology 2001
Y Jin H B Lu E Liong T Y Lau G L Tipoe

The aim of our study was to document whether relationships existed among bone morphogenetic proteins (BMPs), peripheral nerve and neoplastic lesions of nerve sheath tumors. The mRNA transcriptions of BMP-2, 3, 4 and 5 in 10 cases of schwannoma, three cases of malignant schwannoma and two cases of trigeminal neuralgia were detected using an in situ hybridization technique. Our results demonstrat...

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