Erythemo-squamous and pustular spongiform eruption. A benign variant of pustular psoriasis

Annular pustular psoriasis--most common form of pustular psoriasis in children: report of three cases and review of the literature

Annular pustular psoriasis (APP) is a rare form of pustular psoriasis with a chronic recurrent course and good prognosis. We report three cases of APP in children, two of whom were siblings. Review of the medical literature reveals that a disproportionately high percentage of cases of APP occur in children. In some cases topical therapy can clear the condition, although in severe or recalcitrant disease, systemic therapy may be necessary.

Allopurinol-induced toxic pustuloderma

We report the case of a 67-year-old man who developed a pustular eruption, fever, neutrophilia and eosinophilia, following a short course of allopurinol. Toxic pustuloderma is an uncommon form of generalized pustular eruption with several characteristic clinical and pathological features. A number of drugs have been incriminated, but to our knowledge this is the first reported case of toxic pustuloderma occurring after the administration of allopurinol.

Toxic pustuloderma: a self-limiting eruption

Three patients are described who developed numerous pinhead sized pustules within areas of a widespread toxic erythema. The eruption was precipitated by food poisoning in one patient, a suspected, but blood-culture-negative septicaemia in another and in the third patient, by a cephalosporin. This self-limiting syndrome consists of fever, a pustular and erythematous eruption, a neutrophil leucocytosis, subcorneal and spongiform pustules but without a history of psoriasis. We believe that this entity of toxic pustuloderma represents a severe form of toxic erythema.