Abstract
Synchronous primary malignancies present challenges in diagnosis, treatment sequencing and management. We present a rare case of a synchronous oral cavity and lymphoproliferative malignancy in a middle-age man. Our patient presented with a primary oral cavity squamous cell carcinoma and was subsequently found to have a secondary lymphoproliferative malignancy (chronic lymphocytic leukaemia/small lymphocytic lymphoma). The challenge of staging and sequencing of treatment is discussed. In addition, this case highlights the importance of multidisciplinary consultation, designing a personalised treatment plan that is coincident with the standard of care for each malignancy, and close follow-up.