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What is Chest radiograph obtained from a male patient with hypeension, What could be the probable diagnosis? and explain in detail?
The CXR shows "3-sign" which is characterstic of Coarctation of aoa Coarctation of Aoa Inferior rib noching is seen and is due to pressure erosion by intercoastal aeries Rib notching is usually bilateral but assymetrical and mostly spares first two ribs The 3-sign appearance in CXR is due to enlargement of left subclan aery above the coarctation. Reverse 3 sign is seen in barium swallow in coarctation of aoa.