Multiple myeloma (MM) is a malignant tumor of plasma cell characterized by overproduction of abnormal plasma cells in the bone marrow and skeletal destruction. The clinical features are bone pain, renal impairment, immunodeficiency, anemia and presence of abnormal immunoglobulins (Ig).

Vitelliform maculopathy is a sharply demarcated lesion caused by the accumulation of material, often lipofuscin in the subretinal space underlying the macula.