School ager with a hacking cough Pediatric Imaging Chest February 15, 2021February 2, 2021 CXR PA and lateral shows a faint focal infiltrate in the posterior basilar segment of the right lower lobe, faintly obscuring the right hemidiaphragm on the PA view and causing a faint spine sign over the lowest vertebral body on the lateral view. The diagnosis was mycoplasma pneumonia. Related Published February 15, 2021February 2, 2021