A Case of Acquired Dermal Melanocytosis of the Face and Extremities
- Author:
Jaehoon HA
1
;
Gi-Wook LEE
;
Jun-Oh SHIN
;
Dongyoung ROH
;
Yeona KIM
;
Sang-Hyeon WON
;
Jungsoo LEE
;
Kihyuk SHIN
;
Hoonsoo KIM
;
Hyun-Chang KO
;
Byungsoo KIM
;
Moon-Bum KIM
Author Information
1. Department of Dermatology, Pusan National University School of Medicine, Busan, Korea
- Publication Type:Case Report
- From:Korean Journal of Dermatology
2024;62(9):516-519
- CountryRepublic of Korea
- Language:English
-
Abstract:
Acquired dermal melanocytosis, characterized by the presence of melanocytes in the dermis, varies in the timing and location of occurrence. While congenital cases, such as Mongolian spots, nevus of Ota, nevus of Ito, and blue nevus, are common, acquired cases also occur. Acquired bilateral nevus of Ota-like macules is relatively common in Asians;however, extrafacial cases, particularly those involving both the face and extremities, are extremely rare. We report the case of a 66-year-old man with symmetric pigmented patches on the scalp, face, shoulders, and dorsa of the hands for 9 months, following the onset of spots on the forehead and nose that progressively spread. Notably, nasal ala pigmentation was confirmed. Histopathological examination revealed scattered melanin-containing dendritic cells in the upper dermis. Based on the clinicopathological findings, he was diagnosed with acquired dermal melanocytosis of the face and extremities, representing a rare case.
