Korean J Pathol.
1985 Jun;19(2):231-235.
Spotted Grouped Pigmented Nevi: A case report
- Affiliations
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- 1Department of Pathology, Yonsei University, Won Joo Medical College, Won Joo, Korea.
- 2Department of Plastic Surgery, Yonsei University, Won Joo Medical College, Won Joo, Korea.
Abstract
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The spotted grouped pigmented nevi is one of special forms of non-giant congenital melanocytic nevi. Histologically the nevus cells tend to proliferate around the skin appendages. We have experienced a case of spotted ground pigmented nevi in a 11 year old girl who had a pigmented plaque consisting of grouped brown black regularly distributed papules on the left inguinal region since birth. Histology revealed intradermal nevus. The skin appendages, especially the hair follicles and eccrine sweet ducts were enveloped by the neuvs cells. Electron microscopic study revealed that this nevus cells were mostly of type B cells. We would like to consider that the spotted grouped nevi are closely related pathogenically with the skin appendages.