We report two cases of eccrine hidrocystoma, one in a 13-year-old-female and the other a 56-year-old male. In the first case, multiple pale blue, translucent, discrete yellow papules of one year's duration were noted on the nose tip of the nose.
The
second case presented with a tiny asymptomatic papule superimposed on a slightly erythematous 2cm-sized. round patch on the forehead for 2 months.
In both cases, the histopathology demonstrated a cystic space filled with eosinophilic amor phous material. Tkhe cyst wall was lined by two layers of cuboidal epithelial cells with eosinophilic cytoplasm. PAS staining showed PAS-positive
materials
in
the cytoplasm of cyst wall epithelium, lumon, and eccrine gland cells.
Topical application of 10% atropine sulfate and surgical excision were performed in the each cases with improvement. (Kor J Dermatol 1992; 30 (2) : 244-248)
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