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Autumn 2005, Vol. 13 No. 3

Hong Kong J. Dermatol. Venereol. (2005) 13, 176

Dermato-venereological Quiz

LS Ku 顧立誠

Abstract
A 55-year-old Chinese man presented with non-itchy skin lesion over his right knee for six months which enlarged progressively (Figure 1). He denied any local trauma. He had heart transplantation three years ago and was on immunosuppressants. Physical examination revealed two adjacent pigmented warty plaques over his right knee measured about 2 cm in diameter each. There were no significant systemic symptoms and signs.