Figure 1

Magnetic Resonance Imaging of the Brain: a large mass in the clivus extending anteriorly to involve the nasopharynx and sphenoid sinus and posteriorly to destroy the clivus and lie anterior to the pons.
Magnetic Resonance Imaging of the Brain: a large mass in the clivus extending anteriorly to involve the nasopharynx and sphenoid sinus and posteriorly to destroy the clivus and lie anterior to the pons.