case_images: PMC7706130_01
case_images: Serum immobilized electrophoresis (IFE) revealed positive result for kappa-light chains.
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case_images: IgA, 0.10 g/L; IgM, 0.01 g/L) as well as elevated 24-hour urinary total protein (2.93 g/24 h) (Table 1). Immuno fixation electrophoresis (IFE) revealed a positive result for kappa-light chains (Figure 1).
case_images: The bone marrow image showed an MM bone marrow change (Wright stain).
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case_images: The bone marrow aspirate showed bone marrow changes typically seen in MM (Figure 2) and in combination with flow cytometry, plasma cells accounted for 58% of the total cell count.
case_images: Echocardiography showing increased ventricular mass and granular sparkling pattern of myocardium (black arrows).
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case_images: During hospitalization, echocardiography showed a further reduction in left ventricular systolic function and left ventricular diastolic function (Table 2) and granular sparkling pattern of the myocardium (Figure 3).
case_images: ECG showed ST-T abnormality after 3 months of admission.
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case_images: One month after admission, electrocardiography (ECG) showed ST-T abnormalities as opposed to the initial normal ECG (Figure 4).
case_images: Oral mucosal exfoliated cells showing multiple deposits of amyloid, positive for Red Congo stain (left) and with yellow birefringence under polarized light (right).
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case_images: Oral mucosal exfoliated cells showed positive staining for Congo Red stain (Figure 5).