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Non-infectious ischiogluteal bursitis: MRI findings.

Cho KH, Lee SM, Lee YH, Suh KJ, Kim SM, Shin MJ, Jang HW - Korean J Radiol (2004 Oct-Dec)

Bottom Line: The superior ends of the bursal sacs abutted to the infero-medial aspect of the ischial tuberosity.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.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.

View Article: PubMed Central - PubMed

Affiliation: Department of Diagnositic Radiology, Yeungnam University College of Medicine, Nam-gu, Daegu, Korea. khcho.med@yumail.ac.kr

ABSTRACT

Objective: We wished to report on the MRI findings of non-infectious ischiogluteal bursitis.

Materials 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.

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Related in: MedlinePlus

Ischiogluteal bursitis in 68-year-old woman.
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Figure 1: Ischiogluteal bursitis in 68-year-old woman.

Mentions: All the enlarged bursae, except the one case that ruptured, were located deep to the inferior portion of the gluteus maximus muscle and posterioinferiorly to the ischial tuberosity on the sagittal sections. On the transverse and coronal sections, the superior end of the bursa abutted to the inferomedial surface of the ischial tuberosity, and it was medial to the common tendon of the hamstring muscles that originates from the inferolateral surface of the ischial tuberosisty (Fig. 1).


Non-infectious ischiogluteal bursitis: MRI findings.

Cho KH, Lee SM, Lee YH, Suh KJ, Kim SM, Shin MJ, Jang HW - Korean J Radiol (2004 Oct-Dec)

Ischiogluteal bursitis in 68-year-old woman.
© Copyright Policy - open-access
Related In: Results  -  Collection

License
Show All Figures
getmorefigures.php?uid=PMC2698173&req=5

Figure 1: Ischiogluteal bursitis in 68-year-old woman.
Mentions: All the enlarged bursae, except the one case that ruptured, were located deep to the inferior portion of the gluteus maximus muscle and posterioinferiorly to the ischial tuberosity on the sagittal sections. On the transverse and coronal sections, the superior end of the bursa abutted to the inferomedial surface of the ischial tuberosity, and it was medial to the common tendon of the hamstring muscles that originates from the inferolateral surface of the ischial tuberosisty (Fig. 1).

Bottom Line: The superior ends of the bursal sacs abutted to the infero-medial aspect of the ischial tuberosity.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.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.

View Article: PubMed Central - PubMed

Affiliation: Department of Diagnositic Radiology, Yeungnam University College of Medicine, Nam-gu, Daegu, Korea. khcho.med@yumail.ac.kr

ABSTRACT

Objective: We wished to report on the MRI findings of non-infectious ischiogluteal bursitis.

Materials 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.

Show MeSH
Related in: MedlinePlus