case_images: PMC6207883_01
case_images: Chest CT scan. The mass is compressing the right ventricle and shifting the heart. Pleural effusion is present, with compression of the left lung.
case_images: CRIHEM2018-8606430.001.jpg
case_images: PMC6207883_01_CRIHEM2018-8606430.001.jpg
case_images: fig1
case_images: Bilateral pleural effusion was also observed (Figure 1).
case_images: Serum protein electrophoresis before (a) and after (b) therapy. After therapy, there was a reduction of the monoclonal component (1).
case_images: CRIHEM2018-8606430.002.jpg
case_images: PMC6207883_01_CRIHEM2018-8606430.002.jpg
case_images: fig2
case_images: Gamma-proteins were increased (30.8% vs 10-20% normal values) on serum protein electrophoresis and contained a monoclonal component (M component) accounting for 23.3% (1.64 g/dl) (Figure 2).
case_images: Amyloid deposition in periumbilical fat ((a)-Congo red) with apple-green birefringence (b) at polarized microscope analysis.
case_images: CRIHEM2018-8606430.003.jpg
case_images: PMC6207883_01_CRIHEM2018-8606430.003.jpg
case_images: fig3
case_images: A sample of periumbilical fat was taken and histologically analyzed: amyloid AL deposits were found as positive Congo red and apple-green birefringent areas under polarized light (Figure 3).