Chest Imaging

Pleural tail sign

radiographic feature that is due to a desmoplastic reaction in the septa of the lung, producing a linear strand- or bandlike density between a peripheral, subpleural pulmonary nodule and the pleura (see solitary pulmonary nodule). Causes include bronchogenic carcinoma, bronchioalveolar cell carcinomatosis and granulomatous disease. The sign is not therefore useful in differentiating benign and malignant processes.

CF - HM