Recurrent Systemic Anaplastic Large Cell Lymphoma, ALK-Positive

**Semantic type:** Neoplastic Process

**Definition:** The reemergence of systemic anaplastic large cell lymphoma, ALK-positive after a period of remission.

**Synonyms:** - Recurrent Primary Systemic Anaplastic Large Cell Lymphoma, ALK-Positive - Recurrent Primary Systemic Anaplastic Large Cell Lymphoma, ALK-Positive