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  • Title: Diagnostic implication of Kaposi's sarcoma-associated herpesvirus with special reference to the distinction between spindle cell hemangioendothelioma and Kaposi's sarcoma.
    Author: Hisaoka M, Hashimoto H, Iwamasa T.
    Journal: Arch Pathol Lab Med; 1998 Jan; 122(1):72-6. PubMed ID: 9448021.
    Abstract:
    OBJECTIVE: To assess the diagnostic utility of recently identified Kaposi's sarcoma-associated herpesvirus (KSHV, also referred to as human herpesvirus 8) in distinction between Kaposi's sarcoma (KS) and other types of vascular lesion, especially spindle cell hemangioendothelioma (SCH). DESIGN: We conducted a polymerase chain reaction analysis of KSHV in 93 cases of benign and malignant vascular lesions, using DNA extracted from archival specimens. RESULTS: All five cases of Kaposi's sarcoma examined, including cases related and cases unrelated to acquired immunodeficiency syndrome, were positive for KSHV. Vascular lesions other than KS, including 6 SCH, 1 kaposiform hemangioendothelioma, 8 angiosarcomas, 46 hemangiomas (15 cavernous, 12 capillary, 7 venous, 6 intramuscular, 2 sinusoidal, 2 epithelioid, 1 microvenular, 1 glomeruloid), and 7 glomus tumors were consistently negative, except for 1 of the 20 pyogenic granulomas examined. CONCLUSIONS: Our data support the previous finding that KSHV is confined almost exclusively to KS, irrespective of human immunodeficiency virus infection, and suggest that KSHV is a reliable diagnostic marker to differentiate KS from other vascular lesions, including those with KS-like morphology, such as SCH.
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