Classic Kaposi sarcoma with sarcoid-like granulomas: A case report and literature review.
Exp Mol Pathol. 2009 Aug
Onak Kandemir N, Yurdakan G, Bektas S, Tekin NS.
Department of Pathology, School of Medicine, Zonguldak Karaelmas University, 67600, Kozlu, Zonguldak, Turkey.
The occurrence of granulomatous reactions within lymph nodes that drain carcinomas is well known but uncommon. Even more rarely, granulomas may occur within the stroma of tumors. These lesions, called sarcoid-like reactions, commonly accompany carcinomas but are very rare in sarcomas. This study presents a case of classic Kaposi sarcoma that contained sarcoid-like granulomas, with a literature review. A soft tissue lesion of the foot was excised from a 74-year-old male. Histopathological examination showed that the tumor tissue consisted of spindle cells, areas of atypical vascular proliferation, and extravasated erythrocytes surrounded by non-caseating granulomas. The patient had no clinical or laboratory findings of sarcoidosis. The case was interpreted as "Kaposi sarcoma containing sarcoid-like granulomas". The association of soft tissue sarcomas with a granulomatous reaction is very rare. A granulomatous reaction is reported to be a good prognostic indicator in several carcinoma types, although its importance in sarcomas is unclear.
Elsevier/Science Direct
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