Primary cutaneous peripheral T-cell lymphoma not otherwise specified

Definition

An extremely rare, primary cutaneous T-cell lymphoma disorder characterized by solitary, or multifocal and diffuse, cutaneous lesions, ranging from tumor-like patches, plaques, papules, nodules, and/or erythroderma, located on any area of the body, which rapidly progress and may become ulcerated and/or infected. Systemic involvement may be associated.