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KMID : 0363220070450111195
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Korean Journal of Dermatology
2007 Volume.45 No. 11 p.1195 ~ p.1198
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A Case of Cllision Tumor Involving Squamous Cell Carcinoma and Lentigo Maligna
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Park Sang-Young
Yoon Tae-Young
Yoon Tae-Jin
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Abstract
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The association of contiguous or "collision" tumors in the same biopsy specimen is uncommon, but often reported in foreign literature. Although some of these associations may arise from the involvement of related cell types, most are fortuitous. There are two or more common lesions juxtaposed by coincidence. The most commonly malignant association, basal cell carcinoma and melanoma, is very difficult to diagnose clinically. In this report, we describe a 80-year-old woman with squamous cell carcinoma and lentigo maligna arising at the same site on the left cheek. To the best of our knowledge, this is the first report of collision tumor comprising squamous cell carcinoma and lentigo maligna in Korean dermatological literature.
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KEYWORD
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Cllision tumor, Lentigo maligna, Squamous cell carcinoma
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