There was a problem loading this presentation. You may not have permission to view it.

You do not have permission to view this presentation.

Giant Pituitary Macroadenoma

OK

An error occurred while loading this content.

Please refresh the page to try again.

Refresh Now
Next
Back
 
You previously started this content
Replay
Resume
 
Login or join to view
Click to Play
 

Giant Pituitary Macroadenoma

Elliot K. Fishman, MD
Director of Diagnostic Imaging and Body CT, Professor of Radiology and Radiological Science, Johns Hopkins
Karen M. Horton, MD
Professor and Interim Chair, Russell H. Morgan Department of Radiology and Radiological Science, Johns Hopkins
 
 

These images show a very large avidly enhancing mass expanding the sella and extending into the suprasellar cistern resulting in severe mass effect on the optic apparatus and third ventricle. The mass also extends posteriorly splaying the midbrain. Centrally in the suprasellar mass there is T1 hyperintensity and increased susceptibility compatible with hemorrhage. There is evidence of invasion into the cavernous sinuses with tumor encasing the cavernous and supraclinoid internal carotid arteries without narrowing them. There is also mass effect of the anteromedial right temporal lobe secondary to marked tumor expansion of the right cavernous sinus. These findings are compatible with a giant pituitary macroadenoma with internal hemorrhage which was confirmed on pathology. Differential considerations at the time of imaging included papillary subtype craniopharyngioma and a mass arising from the clivus or sphenoid sinus which were considered less likely. This patient undoubtedly presented with visual changes. Peak incidence is in young adults 20-40 year old.