+ Site Statistics
+ Search Articles
+ PDF Full Text Service
How our service works
Request PDF Full Text
+ Follow Us
Follow on Facebook
Follow on Twitter
Follow on LinkedIn
+ Subscribe to Site Feeds
Most Shared
PDF Full Text
+ Translate
+ Recently Requested

MRI appearances of the sphenoid sinus at the late follow-up of trans-sphenoidal surgery for pituitary macroadenoma



MRI appearances of the sphenoid sinus at the late follow-up of trans-sphenoidal surgery for pituitary macroadenoma



Australasian Radiology 46(1): 33-40



We aimed to demonstrate the appearances of the sphenoid sinus on MRI performed later than 2 years post- transsphenoidal surgery (TSS). We retrospectively reviewed 47 patients in whom follow-up MRI scans had been performed at least 2 years post-TSS. We specifically reviewed the clinical and imaging of those patients in whom the sphenoid sinus was filled with signal abnormality or masses were present arising from the sinus roof and classified them as tumour or indeterminate abnormalities on imaging criteria. We documented other clinicoradiological details. Twelve of 47 patients demonstrated sphenoid sinus filling or sinus roof masses and in six of 12 patients it was possible to classify them as tumourous using imaging and clinical criteria. The indeterminate and non-tumourous sphenoid sinus abnormalities most frequently had a T1-weighted signal similar to subsellar tumour and displayed rim enhancement and thus could not be reliably distinguished from tumourous abnormality on the basis of signal or enhancement characteristics. The presence of a well-defined surgical defect in the sella floor was associated with resolution of abnormality on MRI follow-up. We concluded MRI findings of sphenoid sinus filling or sinus roof masses are present in approximately 26% of scans performed longer than 2 years post-TSS. Half of these are of indeterminate origin and follow-up is required to discriminate tumour from non- tumour with certainty. A well-defined surgical defect in the sella floor is, however, suggestive of a non-tumourous abnormality.

Please choose payment method:






(PDF emailed within 0-6 h: $19.90)

Accession: 046592371

Download citation: RISBibTeXText

PMID: 11966584

DOI: 10.1046/j.1440-1673.2001.00991.x


Related references

Sphenoid sinus aspergilloma in trans-sphenoidal surgery for pituitary adenomas. Acta Neurochirurgica 157(8): 1345-51; Discussion 1351, 2015

Cerebrospinal fluid rhinorrhea following trans-sphenoidal pituitary macroadenoma surgery: experience from 592 patients. Clinical Neurology and Neurosurgery 110(6): 570-579, 2008

Anatomic Variations of the Sphenoid Sinus and Their Impact on Trans-sphenoid Pituitary Surgery. Skull Base 18(1): 9, 2008

Going beyond scoring systems for cavernous sinus involvement in trans-sphenoidal pituitary surgery. Acta Neurochirurgica 161(5): 1033-1034, 2019

A comparison between endoscopic trans-sphenoidal surgery and traditional trans-sphenoidal microsurgery for functioning pituitary adenomas. Journal of International Medical Research 39(5): 1985-1993, 2011

Response to "Going beyond scoring systems for cavernous sinus involvement in trans-sphenoidal pituitary surgery". Acta Neurochirurgica 161(5): 1035-1036, 2019

Mucocele of the sphenoid sinus: a late complication of transsphenoidal pituitary surgery. Annals of Otology, Rhinology, and Laryngology 107(9 Pt 1): 765-768, 1998

Capsule plication as a protective measure against post-operative intracapsular haematoma formation following trans-sphenoidal removal of pituitary macroadenoma. Acta Neurochirurgica 150(8): 797-802; Discussion 802, 2008

Endocrine Outcomes of Transsphenoidal Surgery for Pituitary Apoplexy Versus Elective Surgery for Pituitary Adenoma. Endocrine Practice 25(4): 353-360, 2019

Minimally invasive endoscope-assisted endonasal trans-sphenoidal microsurgery for pituitary tumors: experience with 215 cases comparing with sublabial trans-sphenoidal approach. Neurological Research 24(3): 259-265, 2002

Trans sphenoidal surgery of pituitary adenomas and other forms of pituitary pathology. Acta Neurologica 36(1): 342-353, 1981

Trans septal approach to the sphenoid sinus and the pituitary gland. Otolaryngology 54(2): 141-148, 1982

Treatment of isolated sphenoid sinus disease by trans-basal lamella approach to sphenoid sinus. Lin Chuang Er Bi Yan Hou Tou Jing Wai Ke Za Zhi 30(16): 1317-1319, 2016

Efficacy of Trans-septal Trans-sphenoidal Surgery in Correcting Visual Symptoms Caused by Hematogenous Metastases to the Sella and Pituitary Gland. Skull Base 18(2): 77-84, 2008

Trans-sphenoidal surgery for pituitary lesions. West Virginia Medical Journal 69(8): 197-199, 1973