Lymphoproliferative Disorder

**Semantic type:** Disease or Syndrome

**Definition:** A disorder characterized by proliferation of lymphocytes at various stages of differentiation. Lymphoproliferative disorders can be neoplastic (clonal, as in lymphomas and leukemias) or reactive (polyclonal, as in infectious mononucleosis).

**Synonyms:** - Lymphoproliferative Disease - Lymphoproliferative disease, NOS - Lymphoproliferative disorder, NOS - lymphoproliferative disorder