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Osler described depression of the left hemidiaphragm and left lobe of the liver as a physical finding in some patients with pericardial effusion. Inversion of the left hemidiaphragm associated with a large pericardial effusion is an unusual, previously unreported complication. It may be a contributory factor in the production of unexplained dyspnea in some patients.

Extramedullary plasmacytoma is a rare form of plasma cell dyscrasia, in which malignant plasma cell tumors arise outside the bone marrow. The tumor may arise in any part of the body but the vast majority occur in the head and neck, primarily in the nasal cavity, paranasal sinuses, or upper airway. Six patients with extramedullary plasmacytoma are presented and the clinical and radiographic findings are reviewed.