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. 2023 Jun 21;9(4):1196–1235. doi: 10.3390/tomography9040097

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© 2023 by the authors.

Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/).

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Exophytic/ectopic-intrasphenoidal pituitary adenoma. (A) Sagittal CT image shows erosion of the sellar floor with a soft tissue lesion extending into the clivus and posterior margin of the sphenoid sinus (red arrow). (B) Coronal postcontrast CISS and (C) noncontrast T1W images reveal a hypointense lesion abutting the inferior margin of the right pituitary lobe and medial wall of the petrocavernous ICA. (D) Coronal postcontrast T1-weighted image demonstrates normal enhancement of the pituitary gland and hypoenhancement of the exophytic adenoma (red arrow).