Rupioid psoriasis associated with arthropathy.

We reported a rare case of rupioid psoriasis associated with arthropathy. A 28-year-old male had suffered from severe arthritis for 6 months and had limpet-like, cone-shaped skin lesions on the extremities for 3 months. The histopathology revealed remarkable Munro's and Kogoj microabscesses, intense dermal edema, and moderate inflammatory cell infiltration. The radiological examination showed bilateral sacroilitis. The skin lesions and arthritis responded dramatically in three weeks to i.m. methotrexate combined with topical steroids and emollients and occlusive dressing technique. There was no recurrence of such skin lesions during the two year follow-up period.