Carcinoma of the oesophagus usually extends by local invasion and lymphatic spread.
However, in sarcoidosis and coal worker's pneumoconiosis, septal thickening is usually less extensive than that seen in patients with lymphatic spread of tumor.
Carcinoma of the oesophagus usually extends by local invasion and lymphatic spread.
However, in sarcoidosis and coal worker's pneumoconiosis, septal thickening is usually less extensive than that seen in patients with lymphatic spread of tumor.