case_images: PMC6458895_01
case_images: (a) The patient with exfoliative dermatitis with severe erythroderma on the upper torso. (b) Skin lesions also affecting lower extremities with nail involvement. (c) Renal ultrasound showing nephrolithiasis in the renal calyx. (d) Urine sediment displaying numerous rounded parallelogram-shaped crystals, consistent with uric acid crystals.
case_images: CRIM2019-8165808.001.jpg
case_images: PMC6458895_01_CRIM2019-8165808.001.jpg
case_images: fig1
case_images: Physical exam revealed diffuse yellow scaling covering his entire body with underlying erythema and tenderness without mucosal involvement (Figures 1(a) and 1(b)). Renal ultrasound showed 5 mm nonobstructing renal calculi in the left kidney and small echogenic kidneys consistent with chronic kidney disease (Figure 1(c)). Subsequent urine microscopy showed diffuse polymorphic uric acid crystals, consistent with uric acid crystal-induced nephropathy (Figure 1(d)).