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Medical Definition of Malignant melanoma in situ
1. A melanoma limited to the epidermis and composed of nests of atypical melanocytes and scattered single cells extending into the upper epidermis; local excision is curative although the lesion, if untreated, may soon invade the dermis. Malignant lentigo may be considered a slowly progressive type of malignant melanoma in situ. (05 Mar 2000)
Lexicographical Neighbors of Malignant Melanoma In Situ
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