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Telangiectatic osteosarcoma of the patella.
- Source :
- Orthopedics; Aug2008, Vol. 31 Issue 8, p808-808, 1p
- Publication Year :
- 2008
-
Abstract
- Although osteosarcoma is the most common primary malignancy of bone, it has only been reported to arise from the patella in a handful of cases. Telangiectatic osteosarcoma accounts for <5% of all osteosarcomas, and it is distinguished histologically by spaces, often blood filled, separated by septa containing highly malignant cells and radiographically by a predominately lytic and/or expansile component. Telangiectatic osteosarcoma can be radiologically confused with aneurysmal bone cyst or giant cell tumor. A 22-year-old otherwise healthy man presented with increasing pain, swelling, and limited flexion of the right knee after failing physical therapy for anterior knee pain. Standard anteroposterior and lateral radiographs demonstrated a diffuse destructive process involving the majority of the patella (including loss of the inferior patellar cortex) and a lytic lesion of the proximal tibia. Apparent osteoid matrix was visible in the soft tissue extension along the inferior pole of the patella. A computed tomography scan of the chest showed 2 pulmonary nodules consistent with metastatic disease. Evaluation of core needle biopsy showed osteosarcoma with telangiectatic features. Given that the majority of the tumor involved the patella/extensor mechanism, it was clear that the tumor originated in the patella. This case presents the first published report of a telangiectatic osteosarcoma arising from the patella. Full article available online at OrthoSuperSite.com/view.asp?rID=29623 [ABSTRACT FROM AUTHOR]
Details
- Language :
- English
- ISSN :
- 01477447
- Volume :
- 31
- Issue :
- 8
- Database :
- Complementary Index
- Journal :
- Orthopedics
- Publication Type :
- Academic Journal
- Accession number :
- 105687962
- Full Text :
- https://doi.org/10.3928/01477447-20080801-30