Molecular evolution of metastatic meningioma: A case report.

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Tác giả: Peter John, Julian Kahr, Christian Mawrin, Belal Neyazi, David R Raleigh, Martin Roepke, I Erol Sandalcioglu, Klaus-Peter Stein, Torsten Walles

Ngôn ngữ: eng

Ký hiệu phân loại: 271.6 *Passionists and Redemptorists

Thông tin xuất bản: Germany : Clinical neuropathology , 2025

Mô tả vật lý:

Bộ sưu tập: NCBI

ID: 214269

Distant metastases in meningioma are rare, and the molecular drivers of meningioma spread are not well understood. We describe the case of a 63-year-old woman who was diagnosed with an intracranial meningioma in 2020 which was graded as an atypical meningioma with brain invasion. Local recurrence occurred 1 year later, and in 2023 bone metastases were resected from the thoracic wall and humerus. Molecular analyses from all tumor sites by next-generation sequencing and genome-wide methylation profiling revealed several molecular alterations (loss of 1chromosome 1p, 3p, 4q, 8p, 9p, 10p, 14q, 18q, 22q) already present in the first tumor which remained surprisingly stable during progression and metastasis. However, distant metastasis was exclusively associated with gain of chromosome 1q and 17q. All samples harbored a homozygous
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