Abstract
A 50-year-old female presented with a history of seizures, headache, nausea, and vomiting.
On imaging, parafalcine meningioma with mass effect features was rendered. She underwent
right frontal tumor excision and craniotomy. Pathological examination showed a tumor
composed of syncytial aggregates of round to plump fusiform cells forming whorls around
prominent branching congested vessels. The tumorous cells expressed α-smooth actin
and heavy-chain caldesmon and were negative for epithelial membrane antigen, protein
S100, HMB45, CD34, calponin, and desmin, thus providing the final diagnosis of intracranial
myopericytoma.
The rarity of this benign tumor at an extremely rare location prompted this study.
As preoperative radiological investigations are nonspecific in such cases, a detailed
and comprehensive pathological examination is mandatory to come to a definitive diagnosis.
Keywords
pathological - immunohistochemical - intracranial myopericytoma
