Tentorial medulloblastoma masquerading as meningioma: A case series and review of literature

Incidence of lateral location of medulloblastoma is higher in adults with most common location being cerebellopontine angle followed by lateral cerebellar and tentorium. Hence, laterally laced tumors are often misdiagnosed, mostly as meningioma. We present two cases of the rarest location (tentorium) with misleading preoperative radiology, presented to us with headache and cerebellar signs/diminished vision. Safe maximal tumor resection was performed with adjuvant therapies. A total of nine cases have been reported till date. There was a predominance of males ( n = 763.6%), only one patient (9.1%) was a child, rest were all adults with mean age of 28.9 ± 8.7 years, and relatively short symptom duration (mean 2.6 ± 2.2 months). The most common radiological misdiagnosis was tentorial meningioma. Our case reports emphasize the significance of contemplating this as differential diagnosis of extra-axial posterior fossa lesions. We have also showcased the second case in literature of tentorial medulloblastoma with both supra- and infratentorial components.