CTICasesBrown Tumors in Primary Hyperparathyroidism
Imaging findings
CT chest and skeletal survey show multiple expansile, lytic bone lesions in the humeral heads, scapula, and ribs, associated with a pathological humerus fracture and medullary nephrocalcinosis in the kidneys.
Key takeaways
Brown tumors are non-neoplastic, expansile lytic bone lesions caused by osteoclast hyperfunction in severe hyperparathyroidism (typically primary, from an adenoma). They closely mimic multiple myeloma or osteolytic metastases, but lack extraosseous soft-tissue components and are accompanied by nephrocalcinosis.
AI-assisted summary — may contain errors. Verify against the source video. Learn more
More from this webinar
- Scimitar Syndrome with Left Tracheal Bronchus and Persistent Left SVCCongenital
- BroncholithiasisInfection
- Left Atrial Calcification post Catheter AblationIatrogenic
- Subcarinal High-Grade SarcomaNeoplastic
- Right Atrial Pseudo-Thrombus from IVC InflowArtifact
- Type A Aortic Dissection presenting as STEMIVascular
- Myocardial Lipomatous Metaplasia and Left Ventricular Pseudo-ThrombusVascular
- Recurrent Type A Intramural Hematoma with Ulcer-Like ProjectionVascular
See all cases from February 7, 2020 →