<prompt> The chest CXR of patient shows?EmphysemaReticular shadowsBatwing edemaKerley B lines  <response>: CXR shows the presence of reticular nodular shadows in both lung fields. Choice A is ruled out since emphysema shows hyperinflation with flattening of the diaphragm. Choice C and D are associated with increased CT ratio and cardiac borders can be ruled out. Hence answer by exclusion is choice B 