Non-Infectious Ischiogluteal Bursitis: MRI Findings.
- Author:
Kil Ho CHO
1
;
Sung Moon LEE
;
Young Hwan LEE
;
Kyung Jin SUH
;
Sung Moon KIM
;
Myung Jin SHIN
;
Han Won JANG
Author Information
- Publication Type:Original Article ; Comparative Study
- Keywords: Bursa, Bursitis; Hip; Inflammatoin; Magnet resonance (MR); Soft tissues
- MeSH: Aged; Aged, 80 and over; Bursitis/*diagnosis/pathology; Buttocks; Female; Follow-Up Studies; Humans; Ischium; *Magnetic Resonance Imaging; Male; Middle Aged
- From:Korean Journal of Radiology 2004;5(4):280-286
- CountryRepublic of Korea
- Language:English
- Abstract: OBJECTIVE: We wished to report on the MRI findings of non-infectious ischiogluteal bursitis. MATER AND METHODS: The MRI findings of 17 confirmed cases of non-infectious ischiogluteal bursitis were analyzed: four out of the 17 cases were confirmed with surgery, and the remaining 13 cases were confirmed with MRI plus the clinical data. RESULTS: The enlarged bursae were located deep to the gluteus muscles and postero-inferior to the ischial tuberosity. The superior ends of the bursal sacs abutted to the infero-medial aspect of the ischial tuberosity. The signal intensity within the enlarged bursa on T1-weighted image (WI) was hypo-intense in three cases (3/17, 17.6%), iso-intense in 10 cases (10/17, 58.9%), and hyper-intense in four cases (4/17, 23.5%) in comparison to that of surrounding muscles. The bursal sac appeared homogeneous in 13 patients (13/17, 76.5%) and heterogeneous in the remaining four patients (4/17, 23.5%) on T1-WI. On T2-WI, the bursa was hyper-intense in all cases (17/17, 100%) ; it was heterogeneous in 10 cases and homogeneous in seven cases. The heterogeneity was variable depending on the degree of the blood-fluid levels and the septae within the bursae. With contrast enhancement, the inner wall of the bursae was smooth (5/17 cases), and irregular (12/17 cases) because of the synovial proliferation and septation. CONCLUSION: Ischiogluteal bursitis can be diagnosed with MRI by its characteristic location and cystic appearance.
