שאלה משלב א׳ בנוירוכירורגיה · מועד 2020, שאלה 128

Correct: B — surgery for biopsy of the lesion. With negative AFP and beta-hCG, a secreting germ cell tumour is excluded, so tissue is required to distinguish germinoma, which is treated with chemoradiation, from a pineal parenchymal or glial tumour, which is resected. Option A is wrong because serum markers add little once the CSF markers are negative; option C is wrong because resection before a diagnosis risks an unnecessary operation for a germinoma; option D is wrong because radiotherapy without histology is inappropriate.

מקור: בYoumans, Vol 3, page 2187