Hemangiopericytoma
soft tissue cancer that is a soft tissue sarcoma and originates in the pericytes in the walls of capillaries
A hemangiopericytoma is a type of soft-tissue sarcoma that originates in the pericytes in the walls of capillaries. When inside the nervous system, although not strictly a meningioma tumor, it is a meningeal tumor with a special aggressive behavior. It was first characterized in 1942.
Signs and symptoms
Symptoms of hemangiopericytoma vary greatly depending on both tumor stage and affected organs. Most patients report pain and mass-related symptoms, while others also report vascular disease-related symptoms, and some have no symptoms until late in the disease process. Hemangiopericytomas are most commonly found in the meninges, lower extremities, retroperitoneum, pelvis, lungs, and pleura.
Histopathology
Hemangiopericytomas are tumors that are derived from specialized spindle shaped cells called pericytes, which line capillaries.
Hemangiopericytoma is an aggressive mesenchymally derived tumor with oval nuclei with scant cytoplasm. There is dense intercellular reticulin staining. Tumor cells can be fibroblastic, myxoid, or pericytic.
“Hemangiopericytoma” enters the record as soft tissue cancer that is a soft tissue sarcoma and originates in the pericytes in the walls of capillaries. Crown Archives preserves that source wording while asking what Hemangiopericytoma, soft and tissue can confirm, complicate or overturn.
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Named sources, stable identifiers and responsible institutions provide the strongest route from overview to verifiable evidence. The source revision retrieved here is dated Aug 31, 2026. The linked authority identifier is Q3144913. None of the 0 selected statements returned an explicit reference. The first chronological checks are 1942.
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This entry incorporates text from “Hemangiopericytoma” on English Wikipedia. Contributors are listed in the page history. Text is available under the Creative Commons Attribution-ShareAlike 4.0 License. Selected authority identifiers and statements are retrieved from Wikidata under CC0; their references and qualifiers remain part of the verification path.