CTICasesDendriform Pulmonary Ossification
Imaging findings
A muscular 47-year-old man's chest radiograph shows subtle fine reticular opacities in the lower lobes, initially misinterpreted elsewhere as infection. CT shows dense, chronic-appearing calcified and ossified branching structures arrayed along the interlobular septa in both lower lobes, without associated fibrosis or other chronic lung disease.
Key takeaways
Branching, septally distributed calcified/ossified structures without underlying fibrosis, aspiration, or other chronic lung disease represent dendriform pulmonary ossification, an idiopathic entity that can mimic chronic infection on radiographs but should be recognized by its dense, chronic, branching calcified appearance on CT rather than pursued as an acute infectious process.
AI-assisted summary — may contain errors. Verify against the source video. Learn more
More from this webinar
- Radiation Recall PneumonitisILD
- Disseminated Candidiasis with Miliary Pulmonary NodulesInfection
- Marijuana-Associated Aspergillus BronchitisInfection
- SVC Syndrome with Venous-Enhancement Pseudo-Sclerotic Bone MetastasesArtifact
- Disseminated Coccidioidomycosis Mimicking Metastatic CancerInfection
- LVAD Outflow Cannula Extraluminal Fluid Mimicking ThrombusArtifact
- LVAD Driveline Infection Extending to the Outflow CannulaInfection
- Fatal Reexpansion Pulmonary Edema with Contralateral ARDSInflammatory
See all cases from July 19, 2018 →
Related Metabolic cases
- Systemic AL Amyloidosis with Pulmonary and Pleural Involvement
- Cystic Lung Disease from Pulmonary Light-Chain (Amyloid) Deposition
- Dendriform Pulmonary Ossification
- Pulmonary Extramedullary Hematopoiesis in Myelofibrosis
- Solitary Pulmonary Amyloidoma
- Brown Tumors from Renal Osteodystrophy (Secondary Hyperparathyroidism)