The Arabic version for Morocco of the DLQI is reliable and valid. Severity of the psoriasis, older age, and severe clinical forms influence the HRQL of patients.

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A 17-year-old Moroccan boy, without medical history or similar cases in the family, presented with a 3-year history of nonitchy erythemato-pigmented patches, surmounted by follicular papules, on both cheeks, without lesions of keratosis pilaris on the body (Fig 1).

Ecthyma gangrenosum (EG) is a severe potentially lethal cutaneous infection that progresses sequentially from maculopapular rash to haemorrhagic bulla and then to necrotic ulceration with surrounding erythema. It usually occurs in immunocompromised patients (aplasia secondary to chemotherapy, HIV infection, neutropenia or functional deficit of neutrophils, agammaglobulinemia). It rarely affects healthy people. Differential diagnosis includes leishmaniasis, pyoderma gangrenosum, eschars and papulonecrotic tuberculides. Blood cultures and/or local sample allow the isolation of P. aeruginosa, which is the causative germ. Treatment is based on suitable parenteral antibiotic therapy according to results of susceptibility tests (third-generation cephalosporins, fluoroquinolones). We here report the case of a 2-year old child with no particular past medical history presenting with multiple necrotic ulcers on the back with erythematous border evolving in a febrile context. Blood culture was negative. Laboratory tests showed sedimentation rate 30 mm, CRP 80mg/l. Bacteriological sampling of pus revealed pseudomonas aeruginosa. The diagnosis of ecthyma gangrenosum was made. The patient underwent parenteral third-generation cephalosporins. Complete patient recovery with healing occurred after 4 weeks.

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