We report an additional case of melanoacanthoma, a rare benign mixed tumor of both keratinocytes and melanocytes occurring in a 66-year-old man on the penis shaft a localization not previously described. Clinical and histological features are briefly discussed.
Cutaneous plasmacytosis is a recently described skin disorder consisting of brown to red papules and nodules containing polyclonal plasmacytes. In this particular case, leg ulcers developed but also a diffuse patchy hyperpigmentation coexisting with a primary hypothyrodisim. The last two signs have only been described to date in POEMS syndrome, which is linked to monoclonal plasmacytic proliferation, and might suggest an overlap between these two entities.
A 38-year-old woman developed a generalized pustular eruption 18 h after taking an oral cephalosporin (cephalexin). After having excluded other possible pustular dermatoses, we concluded that our patient’s eruption was drug-induced.
We report the case of a 30-year-old Nigerian patient with mycetoma of the foot without bone involvement caused by Fusarium sp.. Long-term administration of ketoconazole produced a significant improvement with good clinical and biological tolerance.
We report an unusual case of concomitant necrobiosis lipoidica and silicotic granulomas in scars of phlebectomies on the legs, suggestive of a Koebner phenomenon.
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