Aggressive T-Cell Non-Hodgkin Lymphoma

**Semantic type:** Neoplastic Process

**Definition:** A T-cell non-Hodgkin lymphoma with an aggressive clinical course. This category includes T lymphoblastic lymphoma, anaplastic large cell lymphoma, ALK-negative, angioimmunoblastic T-cell lymphoma, hepatosplenic T-cell lymphoma, intestinal T-cell lymphoma, nasal type extranodal NK/T-cell lymphoma, peripheral T-cell lymphoma, not otherwise specified, and subtypes of primary cutaneous T-cell non-Hodgkin lymphoma.