CTICasesSilicosis
▶ Watch on YouTube — age-restricted, cannot embed here
Imaging findings
A chest radiograph (2014) shows upper lobe predominant, fairly symmetric nodules, some hilar elevation, and upper lobe volume loss. CT (2014 and more recent) shows coalescent, discrete, well-defined, and dense nodules in a perilymphatic distribution, congregating along pleural surfaces to form "pseudo plaques," with some conglomerate fibrosis in the left upper lobe and emphysema.
Key takeaways
Silicosis typically presents with discrete, rounded, well-defined, and dense perilymphatic nodules, often coalescing into thick pseudo plaques, and can progress to conglomerate fibrosis. It primarily affects the upper lobes. An occupational history (e.g., 50 years as a bricklayer) is crucial for diagnosis and helps differentiate it from sarcoidosis, which often has less discrete, more irregular nodules.
AI-assisted summary — may contain errors. Verify against the source video. Learn more
More from this webinar
- Tricuspid Annular CalcificationMetabolic
- Blastomycosis Presenting as Necrotizing PneumoniaInfection
- Colonic Interposition (Esophageal Conduit)Iatrogenic
- Retained Guidewire in Pulmonary ArteryIatrogenic
- Ganglioneuroma of the Posterior MediastinumNeoplastic
- Spontaneous Coronary Artery Dissection (SCAD)Vascular
- Ectopic Mediastinal Thyroid TissueOther
- Hepatopulmonary SyndromeVascular
See all cases from March 31, 2016 →
Related Exposure cases
- Acute Lung Injury with Silicone Lymphadenopathy (Possible Silicone Embolization)
- Florid Silicone Pneumonitis/Embolization from Cosmetic Injections
- Excipient Lung Disease (Talc Granulomatosis)
- Chronic Lipoid Pneumonia
- Silo Filler's Disease (Acute Nitrogen Dioxide Inhalation Lung Injury)
- Asbestos-Related Pleural Plaques with Lung Distortion (Cheeto/Dorito Sign)