N Concordance 1 report a case of large cystic acoustic neurinoma. A 52-year-old male was admitt 2 reason for the high inositol content in neurinoma is unknown, but the prominent 3 ea and amenorrhoea due to an intradural neurinoma originating from a thoracic in 4 as metastatic brain tumor, meningioma, neurinoma and chordoma. In meningioma, a 5 s with benign brain tumors (meningioma, neurinoma and pituitary adenoma) is more 6 ned. This extremely rare combination of neurinomas and meningioma was probably i 7 seful for the differential diagnosis of neurinoma from meningioma. PEA concentra 8 MRI is employed. Long-term prognosis of neurinomas was always favourable, while 9 relate with formation of meningiomas or neurinomas. This proteinase might not be 10 occipital approach, which exposed small neurinomas arising from the trochlear an