What does this research mean for the field?

Primary cerebral pleomorphic-myxoid sarcoma can present with hyaline globules and loss of H3K27me3 expression without harboring DICER1 gene mutations. Novelty: ClaimNovelty.NOVEL_FINDING. Consensus alignment: ConsensusAlignment.CHALLENGES_CONSENSUS.

What question did this study set out to answer?

Characterize the histopathological and molecular features of an unusual primary cerebral pleomorphic-myxoid sarcoma arising decades after pituitary radiation therapy.

September 8, 2026Neuropathology

Primary Cerebral Pleomorphic‐Myxoid Sarcoma With Many Hyaline Globules

View Full Paper

Ask AI

Bookmark

Authors

MSMasayuki ShintakuKansai Medical University THTetsuo HashibaKansai Medical University MNMasahiro NonakaKansai Medical University

Discussion

Member takes

Implication

Case report reveals a rare primary cerebral pleomorphic-myxoid sarcoma in a radiation-exposed patient, highlighting a distinct DICER1-wildtype variant.

Key Points

Characterize the histopathological and molecular features of an unusual primary cerebral pleomorphic-myxoid sarcoma arising decades after pituitary radiation therapy.
Evaluated histological, immunohistochemical, and cytogenetic profiles of a right temporal lobe tumor in a 59-year-old male with a history of cranial radiotherapy (N=1).
Histology demonstrated pleomorphic cells within a markedly myxoid stroma, delicate collagen fibers, pseudolipoblasts containing acid mucopolysaccharide, and numerous eosinophilic hyaline globules.
Immunohistochemistry showed loss of nuclear H3K27me3 expression, while cytogenetic testing identified no mutations in the DICER1 gene despite the presence of hyaline globules.

Cite This Study

Shintaku et al. (2026) studied this question.

synapsesocial.com/papers/6a9fd74958e84d0ff5b45d12 https://doi.org/10.1111/neup.70077

View Full Paper

Ask AI

Bookmark

Implication

Case report reveals a rare primary cerebral pleomorphic-myxoid sarcoma in a radiation-exposed patient, highlighting a distinct DICER1-wildtype variant.

Primary Cerebral Pleomorphic‐Myxoid Sarcoma With Many Hyaline Globules

Discussion

Member takes

Implication

Key Points

Cite This Study

Primary Cerebral Pleomorphic‐Myxoid Sarcoma With Many Hyaline Globules

Discussion

Member takes

Implication

Key Points

Cite This Study

Also Consider

Also Consider