Cutaneous and systemic plasmacytosis: a Chinese case.

Cutaneous and systemic plasmacytosis (CSP) is an exceedingly rare condition arising primarily in patients of Japanese descent. Herein, we describe a patient of mainland Chinese origin suffering CSP. A 49-year-old Chinese male had asymptomatic brownish-red plaques and papules of the face and trunk for 6 years.

Unilateral linear capillaritis: two unusual Chinese cases.

Unilateral linear capillaritis (ULC) is a rare special variation of pigmented purpuric dermatosis (PPD), which is characterized clinically by linear or segmental distribution of pigmented purpuric macules located predominantly on the lower extremities and showing a favorable prognosis. In this case report, we describe two unusual cases of ULC, in one male and one female patient, with unilateral lesions involving the upper extremities that loosely follow the dermatome lines. Biopsy results revealed a common histopathology feature to PPD without heavy band-like infiltration in the upper dermis.

Eruptive cherry angiomas associated with vitiligo: provoked by topical nitrogen mustard?

We report a 27-year-old man who had suffered with vitiligo for 7 years and with eruptive cherry angiomas within or around the repigmented vitiliginous skin for 2 years. After continual therapy for vitiligo with topical nitrogen mustard in a concentration of 0.001% for 5 years, multiple cherry angiomas erupted within or around the repigmented vitiliginous plaques.