A case of meningeal myxoid solitary fibrous tumor/hemangiopericytoma with unique NAB2-STAT6 fusion gene and symptomatic intratumoral hemorrhage
| Autor: | Yoshifumi Teramoto, Takako Kihara, Seiichi Hirota, Kimito Yamada, Kazuhiro Nagatsuka, Yoshitane Tsukamoto, Tomonari Yabuuchi, Shohei Matsuo, Haruki Yugami |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2017 |
| Předmět: |
Hemangiopericytoma
Solitary fibrous tumor Pathology medicine.medical_specialty business.industry CD34 NAB2/STAT6 Fusion Gene medicine.disease Pathology and Forensic Medicine 03 medical and health sciences 0302 clinical medicine 030220 oncology & carcinogenesis medicine lcsh:Pathology Immunohistochemistry business Pathological 030217 neurology & neurosurgery Hyaline Superior sagittal sinus lcsh:RB1-214 |
| Zdroj: | Human Pathology: Case Reports, Vol 10, Iss, Pp 85-88 (2017) |
| ISSN: | 2214-3300 |
| Popis: | We experienced a case of meningeal solitary fibrous tumor (SFT)/hemangiopericytoma (HPC) with symptomatic intratumoral hemorrhage in a 67-year-old Japanese woman. Her chief complaints were sudden onset of motor aphasia and right hemiparesis. Brain computed tomography showed the hemorrhagic mass adjacent to the superior sagittal sinus. The mass was resected and pathological examination of the specimen revealed a tumor that is rich in vessels and accompanied with intratumoral hemorrhage. Short spindle tumor cells were proliferating with myxoid stroma. Tumor cells appeared to be arranged around the vessels and sometimes attached to the vessel wall directly. Although hyalinization of the vessel wall was observed, neither patternless pattern nor staghorn vessels were seen. Immunohistochemistry revealed that the tumor cells were positive for both CD34 and nuclear STAT6. Moreover, gene analyses revealed unique NAB2-STAT6 fusion. Immunohistochemical findings and fusion-gene analyses enabled us to make the definite diagnosis of meningeal myxoid SFT/HPC. The present case showed the three unique features such as clinically symptomatic intratumoral hemorrhage at the onset, rare variant of myxoid SFT/HPC, and unique NAB2-STAT6 fusion. Keyword: Meninx, Myxoid solitary fibrous tumor/hemangiopericytoma, Cerebral hemorrhage, NAB2-STAT6 fusion |
| Databáze: | OpenAIRE |
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