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Metastatic pulmonary calcification: First report of pulmonary calcium suppression using dual-energy CT
Ana Fehrmann1, Jorge Garcia Borrega2, Jasmin Holz1
1Department of Radiology, University Hospital of Cologne, Kerpener Str. 62, D-50937 Cologne, Germany.
Abstract:
Metastatic pulmonary calcification is an underdiagnosed metabolic lung disease characterized by diffuse calcium deposition in the lungs, often associated with secondary hyperparathyroidism due to chronic renal failure. A 31-year-old man with chronic renal failure initially presented with diffuse pain symptoms, deterioration of general condition, and respiratory insufficiency. Noncontrast-enhanced computed tomography of the chest was performed using a spectral-detector-based dual-energy CT. It showed multiple, centrilobular, ground-glass opacities, and nodules, ultimately leading to the diagnosis. Calcium suppression proved to be highly useful to classify the pulmonary alterations.
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