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MR imaging of pituitary adenomas with sphenoid sinus invasion: characteristic MR findings indicating fibrosis.
Radiat Med. 1996 Jul-Aug; 14(4):173-8.RM

Abstract

We reviewed MR images obtained before and after the injection of Gd-DTPA in six patients with pituitary adenoma extending into the sphenoid sinus, and correlated the imaging and histological findings. The portion of each adenoma involving the sphenoid sinus and sellar floor was less intense on both T1- and T2-weighted spin-echo images and Gd-enhanced images when compared with the sellar/suprasellar solid portion of the adenoma, which showed marked contrast enhancement. Histological examination of adenoma specimens taken from the sphenoid sinus demonstrated abundant collagen fibers between the adenoma cells, whereas tumor tissue from the suprasellar region showed no fibrotic change. We concluded that pituitary adenomas seem to have a tendency to develop fibrosis on extension into the sphenoid sinus.

Authors+Show Affiliations

Department of Radiology, Tohoku University, Japan.No affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info available

Pub Type(s)

Journal Article

Language

eng

PubMed ID

8916258

Citation

Ishii, K, et al. "MR Imaging of Pituitary Adenomas With Sphenoid Sinus Invasion: Characteristic MR Findings Indicating Fibrosis." Radiation Medicine, vol. 14, no. 4, 1996, pp. 173-8.
Ishii K, Ikeda H, Takahashi S, et al. MR imaging of pituitary adenomas with sphenoid sinus invasion: characteristic MR findings indicating fibrosis. Radiat Med. 1996;14(4):173-8.
Ishii, K., Ikeda, H., Takahashi, S., Matsumoto, K., Ishibashi, T., & Tazawa, S. (1996). MR imaging of pituitary adenomas with sphenoid sinus invasion: characteristic MR findings indicating fibrosis. Radiation Medicine, 14(4), 173-8.
Ishii K, et al. MR Imaging of Pituitary Adenomas With Sphenoid Sinus Invasion: Characteristic MR Findings Indicating Fibrosis. Radiat Med. 1996 Jul-Aug;14(4):173-8. PubMed PMID: 8916258.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - MR imaging of pituitary adenomas with sphenoid sinus invasion: characteristic MR findings indicating fibrosis. AU - Ishii,K, AU - Ikeda,H, AU - Takahashi,S, AU - Matsumoto,K, AU - Ishibashi,T, AU - Tazawa,S, PY - 1996/7/1/pubmed PY - 1996/7/1/medline PY - 1996/7/1/entrez SP - 173 EP - 8 JF - Radiation medicine JO - Radiat Med VL - 14 IS - 4 N2 - We reviewed MR images obtained before and after the injection of Gd-DTPA in six patients with pituitary adenoma extending into the sphenoid sinus, and correlated the imaging and histological findings. The portion of each adenoma involving the sphenoid sinus and sellar floor was less intense on both T1- and T2-weighted spin-echo images and Gd-enhanced images when compared with the sellar/suprasellar solid portion of the adenoma, which showed marked contrast enhancement. Histological examination of adenoma specimens taken from the sphenoid sinus demonstrated abundant collagen fibers between the adenoma cells, whereas tumor tissue from the suprasellar region showed no fibrotic change. We concluded that pituitary adenomas seem to have a tendency to develop fibrosis on extension into the sphenoid sinus. SN - 0288-2043 UR - https://www.unboundmedicine.com/medline/citation/8916258/MR_imaging_of_pituitary_adenomas_with_sphenoid_sinus_invasion:_characteristic_MR_findings_indicating_fibrosis_ L2 - https://medlineplus.gov/mriscans.html DB - PRIME DP - Unbound Medicine ER -