Bright lesions on sellar/parasellar T1-weighted scans.

  title={Bright lesions on sellar/parasellar T1-weighted scans.},
  author={David M. Yousem and John A. Arrington and A. John Sanjeev Kumar and R. Nick Bryan},
  journal={Clinical imaging},
  volume={14 2},
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… CONTINUE READING