DZI20-135: NP

From MGH Learn Pathology


Request type Study
Subspecialty Neuropathology
Set Frozens Study Set 2020
Topic NP
Presenter NS495 (user needs to log in to Learn Pathology)


Toggle columns: Diagnosis

Case Clinical history Requester Diagnosis
Case Clinical history Requester Diagnosis

Case 1


49 yo F with cystic left cerebellar mass with associated densely enhancing component that appears vascular and has products of hemorrhage along its margins null Vascular tumor with hemorrhage and intracellular fat (Oil-Red-O) • consistent with hemangioblastoma (permanent dx: hemangioblastoma • WHO grade I of IV)

Case 2


25 yo with exophytic mass at right medulla null Low grade glial tumor with abundant Rosenthal material (permanent dx: pilocytic astrocytoma • WHO grade I)

Case 3


58 yo F with right frontal extra-axial mass (4.5 cm) null Meningioma (permanent dx: meningioma with atypical features and mildly elevated proliferation index)

Case 4


58 yo M with two peripherally enhancing cystic left frontal and parietal lesions null High grade glioma (permanent dx: glioblastoma)

Case 5


53 yo M with pineal cystic lesion (1.6 cm) null Pineal-type parenchyma with calcifications • no definitive lesion seen (permanent dx: pineal cyst)

Case 6


32 yo F with history of anaplastic astrocytoma s/p craniotomy for resection 10 years ago with chemoradiation • with imaging concerning for recurrence null Brain with infiltrating by cells of patient's known astrocytoma (permanent dx: recurrent/residual infiltrating astrocytoma)

Case 7


51 yo M with intradural tumor at L1-L2 null Schwannoma

Case 8


34 yo F with 2.7 cm enhancing intradural lesion at L2 null Suggestive of myxopapillary ependymoma (permanent dx: Schwannoma with abundant myxoid change)

Case 9


32 yo M with pituitary mass null Pituitary adenoma

Case 10


53 yo M with history of GBM s/p resection 2 years ago now with nodular enhancement on surveillance MRI null Brain with abundant tumor cells consistent with known glioblastoma

Case 11


72 yo M with multiply recurrent atypical meningioma (s/p multiple resections • radiation • brachytherapy • pembrolizumab • and Avastin) now with imaging concerning for progression null Meningothelial tumor consistent with known atypical meningioma • viable and without evidence of progression to anaplastic meningioma (permanent dx: recurrent/residual atypical meningioma)

Case 12


67 yo M with history of rectal carcinoma now with new brain mass null Malignant glioma with extensive necrosis (permanent dx: glioblastoma)

Case 13


90 yo M with possible recurrence of previously resected R. occipital melanoma s/p pembro and radiation null Reactive gliosis with abundant hemosiderin. Additional tissue requested.

Case 14


34 yo F with history of pituitary adenoma null Neoplasm with neuroendocrine features and marked pleomorphism • consistent with adenoma (permanent dx: corticotroph adenoma with elevated proliferation index)

Case 15


59 yo F with left acoustic tumor null Schwannoma with abundant xanthomatous change

Case 16


63 yo M with left occipital mass null High grade glioma (permanent dx: glioblastoma)

Case 17


50 yo M with history of recurrent frontotemporal anaplastic astrocytoma s/p multiple resections null Recurrent/residual glioma. No necrosis or microvascular proliferation seen (permanent dx: recurrent/residual high grade malignant astrocytoma)

Case 18


43 yo M with masslike lesion which appears to replace normal architecture of the majority of the cervical cord null Ependymoma (permanent dx: subependymoma)

Case 19


27 yo F with pituitary cysts null Consistent with contents of Rathke's cleft cyst (permanent dx: acellular fluid material consistent with contents of a Rathke's cyst)