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Nevi, lentigines, and melanomas in blacks
Archives of Dermatology
|May 1, 1980
Summary
Black patients have an average of 8.3 melanocytic nevi. Skin tone influences nevus distribution, with lighter skin correlating to more nevi overall, and darker skin to more lesions on palms and soles.
Area of Science:
- Dermatology
- Dermatopathology
Background:
- Melanocytic nevi are common skin lesions.
- Understanding their prevalence and characteristics in diverse populations is important for clinical diagnosis.
Purpose of the Study:
- To investigate the prevalence and distribution of melanocytic nevi in black patients.
- To describe the histological patterns of nevi on palms and soles.
Main Methods:
- Examination of 251 black patients for melanocytic nevi.
- Analysis of nevus distribution based on skin tone.
- Histological examination of plantar-palmar lesions.
Main Results:
- An average of 8.3 melanocytic nevi per patient was detected.
- Light-skinned black individuals had more nevi on the total body.
- Dark-skinned black individuals had a higher number of lesions on palms and soles.
- Plantar-palmar lesions typically showed a lentigo simplex pattern.
Conclusions:
- Skin pigmentation influences the distribution of melanocytic nevi in black individuals.
- Histological differentiation between benign lentigines and early acral lentiginous melanoma on palms and soles can be challenging.
- Most acral pigmented lesions do not necessitate surgical excision.