Giant forehead plasmacytoma as a growing lump in a patient with multiple myeloma.

Extramedullary plasmacytoma represents less than 5% of plasma cell malignancies, 85% corresponding to head and neck masses. Symptoms are related to compressive effects according to location, aesthetics issues and can be misleading associated with soft tissue disorders. In this case report, we discuss a 70-year-old woman who presented with a 3-month history of a growing painless forehead lump and confusion, for which she had an emergent simple head computed tomography scan.