A Case of Lentigo Maligna Developed on the Sole.
- Author:
Kyung YOO
;
Jee Yoon HAN
;
Jeong Rae KIM
- Publication Type:Case Report
- MeSH:
Epidermis;
Hand;
Humans;
Hutchinson's Melanotic Freckle*;
Leg;
Lentigo*;
Male;
Melanocytes;
Melanoma;
Middle Aged;
Triacetoneamine-N-Oxyl
- From:Korean Journal of Dermatology
1983;21(2):201-205
- CountryRepublic of Korea
- Language:Korean
-
Abstract:
Lentigo maligna, a precancerous tumor arising from abnormal melanocytes, is a chronic, slowly progressive, pigmented lesion with a range of colors from pale tan to black and an irregular shape, The commonest location of lentigo maligna is the face during the sixth and seventh decades of life. Less frequently, the lesion occurs on an extrafacial area such as the hand or lower leg. In the late stage, lentigo maligna transforms into invasive malignant melanoma. A 50-year-old male patient had a well-defined, black pigmented patch on the right sole for 30 years. The histopathologic examination revealed numerous vacuolated melanocytes clusters at the dermo-epidermal junction with invasion of the epidermis. There was no evidence of dermal invasion by atypical melanocytes.
