A Case of Cerebellar Intraparenchymal Subependymoma with Next-Generation Sequencing Analysis

Hee Jung Kwon, Se Hoon Kim, Yeon Lim Suh

Research output: Contribution to journalArticlepeer-review


Subependymomas are rare, intraventricular glial tumors histologically characterized by clusters of small uniform cells distributed in an abundant fibrillary matrix. These tumors can arise in the parenchyma of the cerebrum, cerebellum, or spinal cord. Herein, we report an extremely rare case of cerebellar intraparenchymal subependymoma in a 62-year-old woman. The patient presented with dizziness for several years, and brain magnetic resonance imaging revealed a well-defined solid mass in the right cerebellum, upon which a stereotactic biopsy was performed. Histologically, the tumor showed a distinctive multinodular pattern with unevenly distributed glial cells and an abundant fibrillary matrix. Next-generation sequencing analysis showed balanced genomes without genetic alterations, including single-nucleotide variants, small insertions, deletions, or copy number alterations. Follow-up magnetic resonance imaging revealed that the size of the mass has not changed; the patient has not received any surgical treatments since the pathologic diagnosis and is living healthily.

Original languageEnglish
Pages (from-to)69-75
Number of pages7
JournalInternational Journal of Surgical Pathology
Issue number1
Publication statusPublished - 2023 Feb

Bibliographical note

Funding Information:
This work was supported by the Yeungnam University (grant number 221A580027).

Publisher Copyright:
© The Author(s) 2022.

All Science Journal Classification (ASJC) codes

  • Anatomy
  • Surgery
  • Pathology and Forensic Medicine


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