Quiz 29 Head and Neck

Image:

Questions:

1. Name the examination.
2. Name the labelled cisterns and its content.

Answers:

1. CT brain non-contrast, axial plane soft tissue window
2. The labelled cisterns:
   1. Cisterna magna: Vertebral artery and its posterior inferior cerebellar arteries
   2. Suprasellar cistern: Optic nerve, anterior part of circle of willis.
   3. Interpeduncular cistern: Posterior part of the circle of willis
   4. Ambient cistern: Posterior cerebral artery and the basal veins
   5. Quadrigerminal cistern: Venous confluence of the straight and inferior sagittal sinus forming vein of Galen, joined by internal cerebral and the basal vein on each sides