All are T cell lymphomas, EXCEPT:: (A) Lymphoplasmacytic lymphoma, (B) Mycosis fungoides, (C) Anaplastic large cell lymphoma, (D) Aggressive NK cell leukemia
Answer is A. Lymphoplasmacytic lymphoma is a B cell lymphoma, all others are T cell lymphomas. Ref:Harrisons principles of internal medicine 18th edition, Page: 920.