Abstract
Eighty-seven patients with sellar and parasellar pathology were evaluated by magnetic resonance imaging to categorize lesions with hyperintensity on T1-weighted images. Postoperative fat packing after transsphenoidal hypophysectomy, intratumoral subacute or chronic hemorrhage in pituitary adenomas, and hemorrhagic or fat-containing craniopharyngiomas accounted for 33 of 35 abnormalities with short T1 values. Forty-three percent of nonsurgically treated pituitary adenomas had subacute intratumoral hemorrhage present. Using T2-weighted images to distinguish fat from subacute hemorrhage and attempting to identify the normal anterior pituitary gland on T1-weighted images may help to differentiate these three entities. T1-weighted images alone were not sufficient to distinguish between all sellar and parasellar masses.
Original language | English (US) |
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Pages (from-to) | 99-105 |
Number of pages | 7 |
Journal | Clinical Imaging |
Volume | 14 |
Issue number | 2 |
DOIs | |
State | Published - May 1990 |
Keywords
- Magnetic resonance imaging
- adenoma
- hemorrhage
- pituitary gland
- sellar
ASJC Scopus subject areas
- Radiology Nuclear Medicine and imaging