Intravascular Nodular Fasciitis


NCI: A rare, rapid growing, non-encapsulated benign neoplasm that arises from the vessels. It is characterized by the presence of non-hyperchromatic spindle-shaped fibroblasts, multinucleated osteoclast-like giant cells, chronic inflammatory infiltrate, red blood cell extravasation, and high mitotic activity, in a storiform growth pattern.

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