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논문KCI 등재

카포시 육종과 유사 병변의 면역 조직학적 특성의 비교 분석

Immunohistochemical Characteristics of Kaposi Sarcoma and its Mimicries

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Abstract

Background : The differential diagnosis of Kaposi sarcoma includes many disease that range from benign disease to malignant tumors. However, little information is available about the immunohistochemical characteristics of Kaposi sarcoma. Methods : The expressions of 13 various proteins (HHV-8 LNA-1, Ki-67, bcl-2, p53, CD31, CD34, factor VIII, D2-40, vimentin, SMA, S-100, EMA, and c-kit) were evaluated immunohistochemically in 49 vascular tumors including 16 Kaposi sarcomas, 8 angiosarcomas, 2 hemangioendotheliomas, and 23 benign vascular tumors with using the tissue array method. Results : All 16 cases of Kaposi sarcoma showed nuclear staining for HHV-8 LNA-1, whereas all the cases of angiosarcoma and benign vascular lesions were negative for HHV-8 LNA-1 (p<0.001). All Kaposi sarcoma were positive for D2-40, which is a marker of lymphatic differentiation, but 25% of the benign vascular lesions and 30.4% of the angiosarcoma were positive for D2-40 (p<0.001). The mean proliferation index as assessed by Ki-67 immunostaining revealed no difference between the benign and malignant vascular lesions (p>0.05). No Kaposi sarcoma showed a bcl-2 expression, but 62.5% of the angiosarcomas and 21.7% of the benign vascular tumors had bcl-2 expressions (p=0.005). Conclusions : Immunohistochemical detection of HHV-8 LNA-1 and D2-40 are useful tools to differentiate Kaposi sarcoma from other vascular tumors.

참고문헌 (29)

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