Sectional Anatomy Quiz - IV.

In this series we present a quiz about identification of salient and important anatomical landmarks present at a given level on the computed tomography (CT) image. The representative image is followed by further images showing examples of various commonly encountered pathologies that can be seen at this level in clinical practice. Readers are expected to identify highlighted structures in all the images and appreciate how a given abnormality can alter the appearance of normal structures. The aim of this series is to foster understanding and interpretation of the CT component of the single photon emission computed tomography (SPECT) and positron emission tomography (PET) studies help nuclear physicians in interpretation by the nuclear medicine professionals.