Acquired perforating dermatosis in a patient with chronic renal failure and diabetes mellitus.

Perforating disorders in patients with chronic renal failure (CRF), diabetes mellitus (DM), or both, may resemble any or all of the four classic cutaneous perforating disorders. However, due to the highly variable and overlapping histologic appearance of the lesions in patients with CRF, DM, or both, it may be useful to categorized these lesions as a distinct, yet encompassing process, termed by Rapini as acquired perforating dermatosis. We describe a patient with both CRF and DM with acquired perforating dermatosis.