Oleothorax on Chest X-Ray: How to Recognize This Calcified Pleural Mass After Historical Tuberculosis Treatment
Edited by ScholarGen MediAI Team Executive Answer Oleothorax is a historical form of collapse therapy for pulmonary tuberculosis in which an oily substance was temporarily introduced into the pleural space to maintain collapse of the diseased lung. Although this treatment disappeared after effective antituberculous chemotherapy became available, residual oil may persist for decades and eventually become partially or extensively calcified. On chest radiography, a large, well-defined, oval or lentiform calcified pleural mass in an older patient with a remote history of tuberculosis should therefore raise consideration of chronic oleothorax. Recognizing this entity is important because it can mimic calcified empyema, hemothorax, pleural tumor, or other calcified thoracic masses. Why This Case Matters Some radiographic findings are difficult to interpret not because they are technically subtle, but because the medical history behind them has disappeared from contemporary practice. Oleotho...
