Respiratory Distress Syndrome Associated with Erythrodermic Psoriasis.

Erythrodermic psoriasis is an uncommon and severe variant of psoriasis which may be associated with rare and severe complications such as acute respiratory distress syndrome. Early recognition of this life-threatening condition can allow prompt appropriate treatment. We report the case of a 69-year-old man with a long history of psoriasis who developed acute respiratory distress during a disease flare-up. There was no relevant past history (except for mild emphysema), known allergy, or recent treatment. Chest X-ray revealed new bilateral infiltrates, confirmed at chest computed tomography scan. Repeated cultures on aspirate of the bronchoalveolar lavage remained negative for viruses, bacteria, and parasites. Cardiac ultrasound was normal and high-dose corticosteroid therapy was initiated. Within a few days his clinical and radiological status improved significantly.