Multiple primary tumours: papillary thyroid car- cinoma, chronic lymphocytic leukemia (CLL) and Non-Hodgkin mantle cell lymphoma in a male patient

INTRODUCTION/OBJECTIVES: Multiple primary tumors (MPM) are defined as more than one synchronous cancer in the same patient. Lymphoma and thyroid cancer are common individually, although they rarely present synchronously. Papillary thyroid carcinoma (PTC) has been associated with the radiotherapeutic treatment of Hodgkin\u27s lymphoma. Concomitant chronic lymphocytic leukemia (B- CLL) and mantle cell lymphoma (MCL) is rare combination where a multiparametric approach is necessary to diagnose two distinct cell populations at the same time