ArticleFrontiers in oncology2023
Case Report: Extraskeletal osteosarcoma with preceding myositis ossificans.
Article in Frontiers in oncology, 2023. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 3 papers.
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Who cites it
3 citing papers in PubMed.
- Primary malignant aneurysmal bone cyst of the metatarsal with PAFAH1B1::USP6 fusion: expanding the clinicopathologic spectrum of malignant USP6 translocated neoplasms.Skeletal radiology · 2026Article
- The Role of Deubiquitinating Enzymes in Primary Bone Cancer.Molecular biotechnology · 2025Review
- Diagnostic challenges in imaging and immunohistopathological profiles in extraskeletal osteosarcoma.World journal of surgical oncology · 2024Article
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Authors and funding
7 authors.
Funding
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Abstract
Extraskeletal osteosarcoma (EO) is a soft tissue sarcoma characterized by the production of bone matrix by neoplastic cells. Benign osteoid in EO, leading to a diagnostic dilemma, is rarely encountered. Herein, for the first time, we present a case with cytogenetically confirmed EO combined with or preceding myositis ossificans (MO). A 21-year-old man had a mildly painful swelling in his left knee. Imaging studies demonstrated a 39-mm mass with peripheral mineralization and cystic change on the posterolateral side of the left fibular head. He was clinically suspected of having either MO or a malignancy, such that wide resection was performed. Macroscopically, the mass was grayish to brown. In the cut section, multiple cystic lesions in addition to solid components were noted. Histopathologically, the solid components demonstrated diffuse proliferation of pleomorphic tumor cells with osteoclast-like giant cells. The malignant tumor cells formed osteoid. In the periphery, the mass was benign, showing mature bone tissue and focally non-malignant woven bone with fibroblasts, compatible with zonation. Fluorescence
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