Sarcoidosis involving the intrapulmonary lymphoid tissue (IPL)
Imaging findings
CT chest shows multiple tiny subpleural and bronchovascular nodules. Focal, nodular expansion is present at the branching points of the bronchovascular bundles, representing sarcoid involvement of the IPL.
Key takeaways
Intrapulmonary lymphoid tissue is located along the bronchovascular bundles and can become hypertrophied or infiltrated in granulomatous diseases like sarcoidosis, presenting as focal nodules at vessel branch points.
AI-assisted summary — may contain errors. Verify against the source video. Learn more
More from this webinar
- Mediastinitis from superinfected calcified histoplasmosis lymph nodeInfection
- Pseudomonas lymphadenitis post-lung transplantationIatrogenic
- Coronary artery spasm mimicking high-grade stenosis on CTAVascular
- Fractional flow reserve (CT-FFR) triage for coronary artery diseaseVascular
- Granulomatous-lymphocytic interstitial lung disease (GLILD) in CVIDAutoimmune
- Anatomic variant of right lung abutting the ascending aortaOther
- CT reconstruction kernel artifactOther
- Coccidioidomycosis pulmonary cystInfection
See all cases from June 28, 2019 →