Abstract
The anterior pituitary gland may exhibit high signal on T1-weighted (T1w) images and/or
low signal on T2-weighted (T2w) images in several normal and pathological states.
High T1w signal may be seen in normal fetuses, neonates, and in pregnant and postpartum
women. It may also occur in Rathke’s cleft cyst, craniopharyngioma, subacute hemorrhage,
manganese deposition, melanoma, dermoid, and lipoma. Low T2w signal may be seen in
hemorrhage, calcification, cystic lesions, hemochromatosis, melanoma, and vascular
lesions. These are described and illustrated.
Keywords
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Article info
Publication history
Accepted:
February 16,
1998
Received:
December 1,
1997
Identification
Copyright
© 1998 Elsevier Science Inc. Published by Elsevier Inc. All rights reserved.
