MRI in multiple myeloma with orbital and dural invasion.

The case of a 42-year-old woman with aleukemic Bence Jones-type multiple myeloma who developed ocular abnormalities is described. Extramedullary plasmocytomas, either as solitary lesions or as manifestations of multiple myeloma, rarely involve the orbit and dural structures. Early detection of such lesions indicates an aggressive clinical course. In this paper we describe the magnetic resonance imaging findings of ocular and dural myelomatous involvement.