Constrictive Bronchiolitis and Pneumatosis Intestinalis
Imaging findings
Chest CT shows severe bronchiectasis, mosaic attenuation, and air trapping in the lower lung zones, classic for constrictive bronchiolitis in a post-allogeneic stem cell transplant patient. Abdominal CT demonstrates extensive pneumatosis intestinalis and retroperitoneal air around the right kidney.
Key takeaways
Constrictive bronchiolitis is a known manifestation of graft-versus-host disease (GVHD) post-stem cell transplantation. Pneumatosis intestinalis can also occur in transplant patients as a benign, self-limiting finding that can be managed conservatively.
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