Ann Dermatol.  2000 Jun;12(2):141-143. 10.5021/ad.2000.12.2.141.

Acquired Dermal Melanocytosis Occurring on the Hand

• Lee MW
• Choi JH
• Sung KJ
• Moon KC
• Koh JK

• KMID: 2163968
• DOI: http://doi.org/10.5021/ad.2000.12.2.141

Abstract

While most dermal melanocytoses are congenital or have an onset in early childhood, there is an acquired group with a late onset. We describe a case of aldolescent onset, unilateral, macular dermal melanocytosis on the hand. A 16-year-old girl presented with a 10-month history of gray-bluish pigmentation on the right palm and the volar side of the right fourth finger. The light microscopic studies showed spindle-shaped dermal melanocytes. The S-100 protein staining of these cells was positive and CD68 staining was negative. Dermal melanocytosis of the macular type, as observed in our case, is very rare.

Keyword

Dermal melanocytosis

MeSH Terms

Adolescent
Female
Fingers
Hand*
Humans
Melanocytes
Pigmentation
S100 Proteins
S100 Proteins