Sporotrichoid cutaneous Mycobacterium avium complex infection.

Mycobacterium avium complex, a common opportunistic pathogen among patients with AIDS, usually manifests as disseminated disease involving the lung, lymph nodes, and gastrointestinal tract. Primary cutaneous infections with M avium complex are extremely rare, and most cutaneous lesions are caused by dissemination. Cutaneous manifestations thus far reported include scaling plaques, crusted ulcers, ecthyma-like lesions, verrucous ulcers, inflammatory nodules, panniculitis, pustular lesions, and draining sinuses.

Keratoelastoidosis marginalis.

Background: Keratoelastoidosis marginalis is a rare disease that is a variant of solar elastosis. Long-term ultraviolet radiation exposure and chronic trauma secondary to manual labor are considered to be inciting factors.

Objective: To outline the clinical and histological features of this disorder.