Solitary plasmacytoma: an unusual presentation.

This case highlights the importance of thoroughly investigating incidental findings, particularly in patients with unexplained symptoms. Solitary plasmacytoma, though rare and accounting for 4-5% of plasma cell dyscrasias, can occur outside the spine and may present without systemic symptoms. Early diagnosis through imaging and biopsy is crucial for appropriate management, as these lesions can be effectively treated if identified early.