case_images: PMC10032451_01
case_images: Peripheral subpleural consolidation, right greater than left (a) in the
  setting of confluent centrilobular ground glass opacities with peripheral
  sparing (b).
case_images: 10.1177_26330040221130084-fig1.jpg
case_images: PMC10032451_01_10.1177_26330040221130084-fig1.jpg
case_images: fig1-26330040221130084
case_images: Computed tomography (CT) scan of the chest was performed and showed confluent centrilobular ground glass opacities which were thought to represent either atypical infection or mild alveolar hemorrhage (Figure 1(a) and (b)).
case_images: Biopsy findings: (a) histologic section stained with hematoxylin and eosin
  reveals blood and red blood cell casts in the tubular lumens. Two glomeruli
  demonstrate segmental fibrinoid necrosis surrounded by marked
  hypercellularity suspicious for crescents. Some tubules appear dilated and
  show features of acute tubular epithelial cell injury. No significant
  chronic changes are seen (200x magnification). (b) Periodic acid Schiff
  stain with one of the two glomeruli shown at higher magnification confirms a
  small crescent with fibrin adjacent to an area of segmental mesangiolysis
  (400x magnification). (c) Immunofluorescence stain for fibrin highlights a
  glomerular segment with fibrinoid necrosis (400x magnification). (d)
  Electron microscopy image shows a distended glomerular capillary lumen with
  endocapillary hypercellularity adjacent to an area of mesangiolysis and
  fibrin accumulation (bottom right). Diffuse podocyte foot process effacement
  is seen (4800x magnification).
case_images: 10.1177_26330040221130084-fig2.jpg
case_images: PMC10032451_01_10.1177_26330040221130084-fig2.jpg
case_images: fig2-26330040221130084
case_images: Pathology from the biopsy (Figure 2) demonstrated pauci-immune glomerulonephritis with early crescent formation, segmental fibrinoid necrosis, and mild acute tubular injury.