MRI evaluation of the brain of a 67-year-old male patient shows an enhancing mass that has eroded the sella turcica and extends superiorly into the brain parenchyma. Which of the following is the most likely diagnosis?

Question

Quizplus · Accepted Answer

The enhancing mass that erodes the sella turcica and extends into the brain parenchyma is most likely a pituitary macroadenoma, which is a large pituitary tumor that can cause compression of surrounding structures. Glioblastoma multiforme can cause enhancing masses in the brain, but it would not specifically erode the sella turcica. An aneurysm would not be visible as an enhancing mass on MRI. A pituitary microadenoma would not erode the sella turcica to this extent.

MRI Evaluation of the Brain of a 67-Year-Old Male Patient