case_images: PMC10757762_01
case_images: Hematoxylin and eosin staining shows brown pigment deposition in the proximal tubular epithelial cells (arrows).
case_images: chi_2023_5_4_91478_190521.jpg
case_images: PMC10757762_01_chi_2023_5_4_91478_190521.jpg
case_images: attachment-190521
case_images: Immunofluorescent labelling was negative for IgA, IgG, IgM, kappa, lambda, and fibrinogen (Figure 1).