case_images: PMC5768544_01
case_images: Heterogeneous attenuation (about 6.2 x 6.3 cm in size, white arrow) with mural nodules in the spleen.
case_images: kjim-2016-142f1.jpg
case_images: PMC5768544_01_kjim-2016-142f1.jpg
case_images: f1-kjim-2016-142
case_images: However, a follow-up computed tomography (CT) of the abdomen showed a heterogeneous attenuation (about 6.2 x 6.3 cm) in size with mural nodules in the spleen (Fig. 1).
case_images: (A) Distinctive plasma cells surrounding the amyloid-like deposition (H&E, x400). (B) Positive thiof lavin S staining (x400) under high-background fluorescence.
case_images: kjim-2016-142f2.jpg
case_images: PMC5768544_01_kjim-2016-142f2.jpg
case_images: f2-kjim-2016-142
case_images: Microscopic examination revealed many plasma cells surrounding the amyloid-like deposition (Fig. 2A) as well as polyclonality of kappa and lambda light chains. S positive under high-background fluorescence (Fig. 2B). Serum immunoelectrophoresis revealed monoclonal proliferation of immunoglobulins (IgG, 1,670 mg/dL).