CTICasesIgG4-Related Lung Disease with Lymphatic-Distribution Nodules
Imaging findings
A separate patient with biopsy-proven IgG4-related disease has CT showing numerous pulmonary nodules distributed along a lymphatic, peribronchovascular pattern reminiscent of sarcoidosis, some containing visible air bronchograms similar to those seen with lymphoproliferative processes such as lymphoma or lymphoid hyperplasia, along with a few scattered thin-walled cysts, and asymmetric lung involvement.
Key takeaways
IgG4-related lung disease can produce a sarcoid-like, lymphatic-distribution nodular pattern with air bronchograms mimicking a lymphoproliferative process, and the presence of a few thin-walled cysts may reflect associated abnormal protein deposition; the markedly asymmetric distribution in this case was considered atypical and raised the possibility of a superimposed or precipitating infection.
AI-assisted summary — may contain errors. Verify against the source video. Learn more
More from this webinar
- Radiation-Induced Migratory Organizing Pneumonia After Breast Cancer TreatmentILD
- Hypersensitivity Pneumonitis Misdiagnosed as SarcoidosisILD
- Delayed Traumatic Diaphragmatic Hernia with HepatothoraxTrauma
- Focal Consolidation from Adenovirus Pneumonia in Multiple MyelomaInfection
- Extraosseous (Extramedullary) Multiple Myeloma with Paraspinal and Soft-Tissue MassesNeoplastic
- Primary Ciliary Dyskinesia (Kartagener Syndrome) with Situs Inversus and BronchiectasisCongenital
- Necrotizing Granulomatous Pulmonary Nodules Following Rituximab WithdrawalInflammatory
- Tracheobronchial Papillomatosis Associated with HPV-Positive Squamous Cell CarcinomaNeoplastic
See all cases from March 15, 2018 →