CTICasesPulmonary Nocardiosis in a Stem Cell Transplant Recipient
[...]. Pulmonary Nocardiosis in a Stem Cell Transplant Recipient. CTICases. Published October 1, 2026. https://cticases.com/c/942ne
Imaging findings
A stem cell transplant recipient with febrile neutropenia had a prior radiograph showing low lung volumes and mild atelectasis. CT later shows a new nodular consolidation in the right lung base with prominent air bronchograms. The lesion is hard to see on the radiograph because it sits behind the dome of the diaphragm.
Key takeaways
The presenter uses air bronchograms within a nodule as a soft argument against fungal infection, and here it turned out to be Nocardia. Nocardia nodules are often seen in the upper lungs in solid organ transplant recipients, but they also occur in the lower lobes. Trimethoprim-sulfamethoxazole prophylaxis after transplant usually prevents Nocardia, and it also covers Pneumocystis.
AI-assisted summary — may contain errors. Verify against the source video. Learn more
More from this webinar
- Rhizopus Bronchitis at the Bronchial Anastomosis after Double Lung TransplantInfection
- Paraesophageal Hiatal Hernia with Intrathoracic Gastric Volvulus and Partial Outlet ObstructionOther
- Disseminated Varicella Pneumonia with Acute Lung Injury after Double Lung TransplantInfection
- Diffuse Idiopathic Pulmonary Neuroendocrine Cell Hyperplasia (DIPNECH)Neoplastic
- Trimethoprim-Sulfamethoxazole (Bactrim)-Induced Acute Eosinophilic Pneumonia Progressing to ARDS and FibrosisILD
- Pneumocystis jirovecii Pneumonia during Dapsone ProphylaxisInfection
- Morgagni Hernia Containing Omental FatCongenital
- Complicated Silicosis with Progressive Massive Fibrosis in a Well Digger and Concrete CutterExposure
See all cases from October 1, 2026 →
Related Infection cases
- Disseminated Histoplasmosis Mimicking Sarcoidosis in a Liver Transplant Recipient
- Pulmonary Tuberculosis Presenting as Digital Osteomyelitis
- Pulmonary Nocardiosis in a Lung Transplant Recipient
- Burkholderia gladioli Pneumonia in a Heart Transplant Recipient
- Pulmonary Mucormycosis (Cunninghamella) in a Stem Cell Transplant Recipient
- Bacillus cereus Pneumonia in a Stem Cell Transplant Recipient