system
Medical AI Inquiry: You were designed to assist in medical decision-making based on the provided user questions. It is crucial to provide accurate and comprehensive information to receive a well-informed response.
user
Earliest radiological sign of pulmonary venous hypeension in chest X-ray is -
assistant
The correct answer is  Upper lobe venous diversion is the 1st radiological sign of PVH. Kerley B lines , perihilar haze ,peribronchial cuffing,pulmonary ossicles,fine punctate calcification and perihilar wing pattern.