Apr 11, 2022 · Dermatofibromas (also known as fibrous histiocystomas) are a spectrum of benign dermal-based lesions with fibroblastic and histiocytic differentiation

2 days ago · AFH is a rare mesenchymal tumor characterized by solid nodules of epithelioid to spindled cells, blood filled pseudoangiomatous spaces, a fibrous pseudocapsule and …

Nov 11, 2024 · Fibrous histiocytoma is a benign fibrohistocytic tumor that arises within the subcutaneous or deep soft tissues and rarely metastasizes

Oct 7, 2025 · Angiomatoid fibrous histiocytoma is an uncommon tumor of uncertain cell lineage that presents as a subcutaneous or deep nodule.

Feb 29, 2024 · Nonossifying fibroma is a benign fibrohistiocytic tumor arising in the metaphysis of long bones of skeletally immature individuals, composed of bland fibroblastic proliferation …

Feb 29, 2024 · Undifferentiated pleomorphic sarcoma (UPS) is a pleomorphic malignant neoplasm of bone lacking a distinct line of differentiation

Uses by pathologists Marker of fibrohistiocytic proliferations Marker of dermal dendrocytes Differentiates dermatofibrosarcoma protuberans (CD34+, factor XIIIa-) from dermatofibroma or …

Aug 8, 2022 · Controversial relationship to myxoid angiomatoid fibrous histiocytoma with similar EWSR1 fusion genes (Histopathology 2014;65:144) Primary pulmonary myxoid sarcoma …

Mar 7, 2025 · Terminology First described in 1988 (Am J Surg Pathol 1988;12:818) Abbreviations: plexiform fibrohistiocytic tumor (PFHT) Other name (s): plexiform fibrous histiocytoma

Dec 14, 2021 · Fibroma of tendon sheath is a benign fibroblastic / myofibroblastic nodular proliferation usually attached to a tendon / tendon sheath