Pleural Metastasis in a patient with Asbestos-related Pleural Plaques
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Imaging findings
Prior imaging showed large, bilateral 'tumefactive' pleural plaques, with larger anterior plaques, consistent with asbestos exposure. Recent imaging demonstrates new and enlarging nodules along all pleural surfaces, including the visceral pleura and fissures, which were absent on prior studies. The patient has a history of colon cancer with hepatic metastatic disease.
Key takeaways
In a patient with pre-existing benign asbestos-related pleural plaques (typically parietal), the appearance of new or enlarging nodules along the visceral pleura or fissures should raise suspicion for pleural metastasis, especially in the setting of known malignancy. Differentiating these from benign plaques is crucial for accurate staging and management.
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