Classification<unk>  panniculitis-like T-cell<unk> , is a subtype of Peripheral T-cell<unk> . Peripheral T-cell<unk>  (PTCL) is defined as a diverse group of aggressive<unk> s that develop from mature-stage white blood<unk> s called T-cells and natural killer<unk> s (NK<unk> s) (see figure for an overview of PTCL subtypes). PTCL is a type of non-Hodgkin’s<unk>  (NHL). NHL affects two particular types of white blood<unk> s: B-cells and T-cells. PTCL specifically affects T-cells, and results when T-cells develop and grow abnormally. File:PTCL-subtypes.jpg<unk>  Panniculitis-like T-cell<unk>  is a rare type of<unk>  that infiltrates the<unk>  fat but does not involve the skin. There are two subtypes – alpha-beta and gamma-delta. Patients with the gamma-delta subtype have a more aggressive clinical course. It is described as CD3+/CD4-/CD8+, with CD30 and CD56 usually negative.
Subcutaneous T-cell lymphoma
Primary cutaneous immunocytoma
Generalized eruptive histiocytoma
Langerhans cell sarcoma
Primary cutaneous adenoid cystic carcinoma
Paraneoplastic acrokeratosis
Cutaneous B-cell lymphoma
Sebaceous lymphadenoma