Finally, rare subtypes of primary cutaneous peripheral T cell lymphoma have been recognized, including provisionally classified entities: primary cutaneous gamma-delta T cell lymphoma, primary cutaneous aggressive epidermotropic CD8+ cytotoxic T cell lymphoma, primary cutaneous acral CD8+ T cell lymphoma, primary cutaneous CD4+ small/medium T cell LPD [29]. The gene discussed is CD8A; the disease is T-cell non-Hodgkin lymphoma.