in the following neoplasms the reaction for gfap was negative : oligodendroglioma ( 3 ) , oligodendroblastoma ( 1 ) , medulloblastoma ( 3 ) , medulloepithelioma ( 1 ) , neuroblastoma ( 1 ) , pineocytoma ( 1 ) , typical teratoma of the pineal ( 1 ) , fibrosarcoma ( 1 ) , pituitary adenoma ( 2 ) , craniopharyngioma ( 1 ) , chordoma ( 1 ) , chemodectoma of globus jugulare ( 1 ) , metastatic carcinoma ( 17 ) , and lymphoma ( 8 ) .
C0027651
neoplasms
C0032000
pituitary adenoma