Cutaneous Reactive T-Cell Rich Lymphoid Proliferation

**Semantic type:** Disease or Syndrome

**Definition:** A reactive, dense cutaneous lymphocytic infiltrate that is predominantly composed of T-cells. Causes include viral, bacterial, and parasitic infections, drugs, vaccines, arthropod-bites, and trauma. In some cases, the histological and clinical characteristics can resemble cutaneous T-cell lymphomas.

**Synonyms:** - Reactive T-Cell Rich Lymphoid Proliferation - rT-LP