[Mycosis fungoides].

History A middle-aged male with a 10-year-history of generalized pruritus involving the whole body was seen in a skin clinic. He denied any significant past medical or drug history. He had no known allergy. Previous skin biopsy performed over the abdomen in February 1999 showed features of lichen planus. He was treated with various topical steroids, emollients and antihistamines but the skin rash and the itchiness did not subside. In March 1999, the rash progressed. Two large plaques developed at sacral skin. They were mildly pruritic but rapidly enlarging. Due to the rapid growth, the tumour bled and ulcerated. Date: 10 May, 2000 Venue: Yaumatei Skin Centre Organizer: Social Hygiene Service, DH; Clinico-pathological Seminar Physical examination There were multiple erythematous lichenified papules and plaques over the upper limbs and the trunk. There was also erythroderma with extensive poikilodermatous changes affecting the abdomen, flanks, back, upper and lower limbs (Figure 1). Two large plaques measured 4x4.5 cm and 1x1.8 cm were noted at the sacrum (Figure 2). There was no palpable lymph node or hepatosplenomegaly.