CTICasesAccelerated Silicosis
Imaging findings
Serial chest radiographs and CT over one year show rapid progression of ground-glass opacity to dense, confluent peribronchovascular consolidations and masses approaching progressive massive fibrosis (PMF) in the mid-to-upper lungs. There are hyperdense, calcified mediastinal and abdominal lymph nodes. The patient was a stone countertop cutter.
Key takeaways
Accelerated silicosis is caused by intense exposure to respirable crystalline silica (e.g., cutting engineered synthetic stone countertops bound with resins). It has a shorter latency than classic silicosis (often 1-5 years) and progress rapidly to PMF.
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