Pituitary macroadenoma

Discussion:

Despite the presence of residual pituitary gland, the most probable diagnosis on imaging is of a pituitary macroadenoma with predominant inferior growth, which was later confirmed on histology. While there are differential imaging diagnoses, such has solid craniopharyngioma, osseous lesions of the sphenoid, and even central skull base meningioma, these are all considered much less likely.

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