Discussion
Diagnosis With Brief Discussion
- Diagnosis
- Metastsatic pulmonary calcification
- Radiologic Findings
- Posteroanterior chest radiograph shows ground-glass opacity in both lungs and tumoral calcifications in both acromioclavicular joints. Thin-section CT scans show diffuse ground-glass opacity in both lungs, and calcified consolidations in subpleural areas of lower lungs. On Tc-99m MDP bone scan images, intense uptake is seen in skull, mandible and shoulder joints (Fig 8). Both lungs shows diffuse uptake also. She had hyperparathyroidism and these findings were improved after parathyroidectomy.
Fig 8
- Brief Review
- Metastatic Pulmonary Calcification
- Occurs in patients who have hypercalcemia
- Associated disease
- Chronic renal failure
- Intraosseous malignant neoplasm
- Kidney and liver transplantation
- Primary hyperparathyoidism
- Hypervitaminosis D
- Excess exogenous administration of calcium and vitamin D
- Especially common in patients undergoing maintenance hemodialysis
# Pathophysiology
- Deposits of calcium phosphate in alveolar septa and the walls of small pulmonary vessels and bronchi
# Manifestations
- Radiography : normal to airspace nodules or patchy areas of parenchymal opacification in both lungs.
- CT : Fluffy, poorly defined nodular opacities, mainly upper lung zone.
Stippled, diffuse, or occasionally ring-like calcification of nodules.
Calcified vessel in chest wall.
Extensive ground-glass opacities, patchy consolidation.
- References
- 1. Imaging of the Chest, Muller and Silva, SAUNDERS ELSEVIER, p.878-880
2. Metastatic Calcification, J HK Coll Radiol 2002;5:186-189
- Keywords
- Lung, Multiple organ, Metabolic and storage lung disesae,