Case report of extramedullary plasmacytoma within the left palatine tonsil in a 31-year-old female patient.

Extramedullary plasmacytoma (EMP) is an uncommon variant (rare presentation) of plasma-cell neoplasia characterized by the proliferation of clonal plasma cells outside the bone marrow microenvironment. EMP most frequently arises in the head and neck region, particularly within soft-tissue structures of the upper aerodigestive tract. Herein, we present a case report of a 31-year-old patient diagnosed with a localized extramedullary plasmacytoma (EMP) of the left palatine tonsil at the University Hospital in Krakow. We are also presenting a summary of the EMP of the tonsil case reports from the PubMed database. This article aims to present a clinical case of extramedullary plasmacytoma involving the palatine tonsil in a 31-year-old woman, with a detailed description of the diagnostic process and therapeutic management. In addition, the article reviews alternative diagnostic approaches and treatment modalities reported in the literature.