case_images: PMC6854950_01
case_images: Purpuric rash on the patient's lower extremities.
case_images: CRIN2019-1042648.001.jpg
case_images: PMC6854950_01_CRIN2019-1042648.001.jpg
case_images: fig1
case_images: A 35-year-old Japanese man with a history of renal disease presented to a dermatology clinic with sudden onset of a purpuric rash on his lower extremities (Figure 1) and was diagnosed with anaphylactoid purpura.
case_images: Mesangial proliferative glomerulonephritis was demonstrated (PAS stain).
case_images: CRIN2019-1042648.002.jpg
case_images: PMC6854950_01_CRIN2019-1042648.002.jpg
case_images: fig2
case_images: Histopathological examination of renal biopsy specimens revealed mild mesangial proliferation (Figure 2).
case_images: Mesangial IgA deposition was observed by immunohistochemistry.
case_images: CRIN2019-1042648.003.jpg
case_images: PMC6854950_01_CRIN2019-1042648.003.jpg
case_images: fig3
case_images: Immunohistochemical examination revealed mesangial IgA (Figure 3), IgG and C3 (Figure 4) depositions, and he was treated with corticosteroids.
case_images: Mesangial C3 deposition was observed.
case_images: CRIN2019-1042648.004.jpg
case_images: PMC6854950_01_CRIN2019-1042648.004.jpg
case_images: fig4
case_images: Immunohistochemical examination revealed mesangial IgA (Figure 3), IgG and C3 (Figure 4) depositions, and he was treated with corticosteroids.