Abstract
This case report describes a patient with thoracic plasmacytoma, an uncommon haematological malignancy, who presented with neck pain. Plasmacytoma is a neoplastic proliferation of B cell lineage but is much less common than multiple myeloma. The histological examination of multiple myeloma and plasmacytoma is identical however in plasmacytoma there is a solitary lesion with negative skeletal survey, negative bone marrow aspirate and little or no myeloma protein detected in the blood. This makes it more challenging to diagnose and a high index of suspicion is required.
