case_images: PMC11001309_01
case_images: Chest CT scan findings. (A-D) Multiple lesions in the lower lobe of the right lung and the upper and lower lobes of the left lung, with diffuse pulmonary alveolar hemorrhage mainly located around the pulmonary hilum and bilateral ground glass opacities (red arrows). (E-H) After 1 week of treatment, the pulmonary infiltration lesions in both lungs of the patient had significantly decreased. (I-L) After 2 weeks of treatment, most of the lung lesions in the patient had been absorbed.
case_images: IRNF_A_2282710_F0001_C.jpg
case_images: PMC11001309_01_IRNF_A_2282710_F0001_C.jpg
case_images: F0001
case_images: Chest CT showed multiple lesions in the lower lobe of the right lung and the upper and lower lobes of the left lung, with diffuse pulmonary alveolar hemorrhage mainly located around the pulmonary hilum and bilateral ground glass opacities (Figure 1A-D). After 1 week of treatment, chest CT reexamination showed that the pulmonary infiltration lesions in both lungs of the patient had significantly decreased (Figure 1E-H).
case_images: Kidney biopsy findings. (A) Cellular crescents (arrow) are visible. Vacuolar degeneration of renal tubular epithelial cells (arrow head), with cellular and protein casts (asterisks) visible in the lumen. Focal tubular atrophy, interstitial fibrosis, interstitial edema, widening, focal single-nucleated cell infiltration, and eosinophilic granulocytes can be seen (periodic acid-Schiff stain, x200). (B) Glomerular capillary necrosis (arrow) is visible (masson stain, x400). (C) Fibrous crescents (arrow) (periodic acid-Schiff stain, x200). (D) Cell crescents (arrow) (periodic acid-Schiff stain, x400).
case_images: IRNF_A_2282710_F0002_C.jpg
case_images: PMC11001309_01_IRNF_A_2282710_F0002_C.jpg
case_images: F0002
case_images: A kidney biopsy (4 months after the first chemotherapy) showed capillary loop necrosis, cell crescents, fibrocellular crescents, and fibrous crescents, and immunofluorescence was negative (Figure 2) (Supplementary Data ).