Ann Dermatol.  1993 Jul;5(2):83-85. 10.5021/ad.1993.5.2.83.

A Case of Halo Dermatitis around Seborrheic Keratosis

• Kim TH
• Lee HS
• Park KB

• KMID: 2361698
• DOI: http://doi.org/10.5021/ad.1993.5.2.83

Abstract

A case of circular eczematous dermatitis around seborrheic keratosis was presented. A 54-year-old man presented with two weeks history of a round pruritic eruption around a preexisting lesion of seborrheic keratosis. Microscopic findings showed central tumor nest composed mainly of basaloid cells with occasional spongtosis and exocytosis. A diffuse, dense, mononuclear cell infiltrate with increased contents of melanophages was seen beneath the tumor. The surrounding lesion of halo dermatitis showed mild dilatation of the capillaries and perivascular infiltration of mononuclear cells in the upper and mid-dermis. The lesion of halo dermatitis disappeared gradually over a three week period following excision of the central lesion. This peculiar phenomenon seemed to be different from that of Suttons halo nevus, and might be a manifestation of an eczematous condition which might have a dermatitis provoking factor.

Keyword

Halo dermatitis; Seborrheic keratosis

MeSH Terms

Capillaries
Dermatitis*
Dilatation
Eczema
Exocytosis
Humans
Keratosis, Seborrheic*
Middle Aged
Nevus, Halo