Differential diagnosis of Lymphangitic Carcinomatosis. On the left multiple diseases showing septal thickening: 1. Lymphangitic carcinomatosis: irregular septal thickening, usually focal or unilateral, in 50% adenopathy, known carcinoma. 2. Cardiogenic pulmonary edema: bilateral abnormalities, filling of alveoli, enlarged heart, rapid response to diuretics, ground-glass opacity due to filling of alveoli with fluid, gravitational distribution of the alveolar fluid. 3. Lymphangitic carcinomatosis. 4. Lymphangitic carcinomatosis with hilar adenopathy and thickening of the central bronchovascular interstitium. 5. Alveolar proteinosis: sharply demarcated secondary lobeles with ground glass attenuation as opposed to secondary lobules with normal aeration, superimposed inter and intralobular septal thickening (crazy paving). 6. Cardiogenic pulmonary edema. #Clinical #Radiology #Pulmonary #CTChest #LymphangiticCarcinomatosis #Lymphangitic #Carcinomatosis #Mimic #Differential #Comparison #Table #RadiologyAssistant
