Intraoperative Imprint Cytology of SMARCB1-Mutant Desmoplastic Myxoid Tumor of the Pineal Region: A Case Report with Cytologic Differential Diagnosis and Literature Review.

Abstract excerpt

OBJECTIVE: Desmoplastic myxoid tumor of the pineal region (DMTPR), SMARCB1-mutant, is a recently recognized and rare pineal region tumor with distinctive clinicopathologic features that contrast sharply with those of atypical teratoid/rhabdoid tumor, a well-known SMARCB1-deficient neoplasm. Although DMTPR generally exhibits low- to intermediate-grade histologic features and relatively indolent clinical behavior,...

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