3 rd group
Chest x-ray in a 60 year old woman with a previous history of breast carcinoma, non-Hodgkin lymphoma, and MALToma, demonstrates extensive reticular opacities throughout both lungs, best seen on the right.
CT confirms the abnormality as being largely confined to the interlobular septae which are thickened and irregular.
Findings are consistent with lymphangitis carcinomatosis.
Case courtesy of Bob Cook, MD. Western Memorial Regional Hospital Corner Brook, Newfoundland.