case_images: PMC10331334_01
case_images: (a) Axial thoracic CT displaying infiltrates with both lungs and diffuse, bilateral consolidative opacities with associated air bronchograms with sparing of subpleural space, (b) Puncture renal biopsy: ischemic type sclerosant glomeruli, mesangial expansion, segmentary necrotizing lesions with fibrin: compatible with focal and segmentary glomerulonephritis, and (c) direct immunofluorescence negative for Immunoglobulins G, A, M, Cq1, C3c, C4c, and fibrinogen.
case_images: 10.1177_2050313X231185617-fig1.jpg
case_images: PMC10331334_01_10.1177_2050313X231185617-fig1.jpg
case_images: fig1-2050313X231185617
case_images: As a result, she was taken to the emergency room, where a thoracic computerized tomography (CT) scan revealed bilateral diffuse alveolar opacities, a finding consistent with diffuse alveolar hemorrhage (DAH) (Figure 1(a)). The immunofluorescence demonstrated pauci-immune deposition of immune complexes (Figure 1(b) and (c)).