title: Multiple Myeloma Presenting with Crystal Deposition in the Bone Marrow.
abstract: Monoclonal immunoglobulin deposition disease (MIDD) is characterized by the deposition of amorphous non-congophilic materials predominantly in the kidneys leading to nephrotic syndrome or renal failure. As with light chain amyloidosis. MIDD is associated with a paraproteinemia. We report a patient suffering from multiple myeloma with IgG kappa paraproteinemia and immunoglobulin deposits predominantly in the bone marrow. The deposits are both as amorphous non-congophilic materials, and in the form of crystals, an observation not reported before.
authors.affiliation: a Clinical Hematology Unit, Faculty of Medicine , Universiti Kebangsaan Malaysia , Kuala Lumpur , Malaysia.
authors.forename: S A
authors.initials: SA
authors.lastname: Fadilah
authors.affiliation: a Clinical Hematology Unit, Faculty of Medicine , Universiti Kebangsaan Malaysia , Kuala Lumpur , Malaysia.
authors.forename: S K
authors.initials: SK
authors.lastname: Cheong
keywords: Light and heavy chain deposition diseases; amyloidosis; myelomatosis; paraproteinemia