Paralabral cysts in the hip joint: findings at MR arthrography.

12:15 EDT 30th March 2015 | BioPortfolio

Summary of "Paralabral cysts in the hip joint: findings at MR arthrography."

The purpose of this research was to retrospectively characterize paralabral cysts of the hip as seen at MR arthrography. MATERIALS AND
After Institutional Review Board approval, 704 patients who had MR arthrography were identified over a 3-year period and 40 patients were identified as having a cyst or fluid collection at the hip by MR report. MR images from these 40 patients were retrospectively reviewed by three radiologists where 18 were found to have a paralabral cyst, which were characterized as follows: location, configuration, contrast filling, size of the cyst, extent, direction, and whether associated osseous changes were present. In addition, the acetabular labrum was assessed for tears and, if present, the location and pattern were characterized.
Paralabral cysts were located anterosuperiorly in 56%, anteriorly in 22%, posterosuperiorly in 17%, and anteroinferiorly in 6% of cases. The vast majority (94%) were multilocular and filled with intra-articular contrast medium. The average dimensions were 8 × 7 × 11 mm. The paralabral cyst demonstrated extracapsular extension in 72% of cases, with 39% located between the ilium and gluteus minimus, and 22% between the ilium and iliopsoas. Remodeling of the ilium adjacent to the cyst was observed in 50% of these cases. A labral tear was at the base of the labrum adjacent to the cyst in 78% of cases, while the tear was isolated to the body of the labrum in 22%. Tears were most commonly anterosuperior (55%) or anterior (28%) in location.
Our results show that paralabral cysts of the hip are most commonly located anterosuperiorly, are multilocular, fill with intra-articular contrast medium, have average dimensions up to 11 mm, and often extend extracapsularly between muscle and bone where they may remodel the adjacent ilium.


Department of Radiology, University of Michigan, 1500 East Medical Center Drive, Ann Arbor, MI, 48109-5326, USA,

Journal Details

This article was published in the following journal.

Name: Skeletal radiology
ISSN: 1432-2161


PubMed Articles [7428 Associated PubMed Articles listed on BioPortfolio]

Immediate reduction of a retro-odontoid synovial cyst following lateral atlantoaxial joint puncture and arthrography: A Case Report.

Study Design. Case report.Objective. We report on a case with a retro-odontoid synovial cyst, and the immediate reduction of the cyst was confirmed following lateral atlantoaxial joint puncture and ar...

Delaminated Tears of the Rotator Cuff: Prevalence, Characteristics, and Diagnostic Accuracy Using Indirect MR Arthrography.

OBJECTIVE. The purpose of this study was to evaluate the prevalence, radiologic characteristics, and accuracy of diagnosing delaminated tears at the supraspinatus tendon-infraspinatus tendon (SST-IST)...

Diagnostic Performance of Flat-Panel CT Arthrography for Cartilage Defect Detection in the Ankle Joint: Comparison With MDCT Arthrography With Gross Anatomy as the Reference Standard.

OBJECTIVE. The purpose of this study is to compare the diagnostic performance and radiation exposure of flat-panel CT arthrography for cartilage defect detection in the ankle joint to standard MDCT ar...

MDCT Arthrography of the Shoulder.

High-resolution multidetector computed tomography (MDCT) arthrography of the shoulder can diagnose internal derangement of the glenohumeral joints including abnormalities of the rotator cuff, glenoid ...

The Role of Pubic Symphyseal CT Arthrography in the Imaging of Athletic Pubalgia.

OBJECTIVE. The purpose of this article is to describe the results of pubic symphyseal CT arthrography compared with MRI in patients with suspected athletic pubalgia. MATERIALS AND METHODS. In this stu...

Clinical Trials [910 Associated Clinical Trials listed on BioPortfolio]

Management of Incidentally Discovered Pancreatic Cysts

The purpose of this study is to determine the natural history of pancreatic cysts and to determine if these cysts can be effectively treated with a less invasive therapy (ethanol injection...

Detection of Renal Malignancy of Complicated Renal Cysts

The aim of this study was to show additional diagnostic criteria of computed tomography (CT) scan to diagnose and predict the detection and recurrence of cystic renal cell carcinoma in the...

Brain Tissue Swelling and Seizure Activity in Inactive Cysticercosis

This study will examine what causes seizures in patients with cysticercosis (pork tapeworm infection). A better understanding of this could lead to improved methods of controlling or prev...

Endoscopic Ethanol Ablation of Communicating Pancreatic Cystic Neoplasms

Pancreatic cysts are common, and some pancreas cysts have malignant potential. Usual treatment of these cysts is either observation or surgical removal of part or all of the pancreas. Mini...

Which is the Most Reliable Radiologic Examination for the Diagnosis of Rotator Cuff Tendon Tear?

At this point in time the approach to the diagnosis of rotator cuff tendon tears is not consensual. The French surgeons, considering they have a good experience of this method, preferably ...

Medical and Biotech [MESH] Definitions

Nodular tumor-like lesions or mucoid flesh, arising from tendon sheaths, LIGAMENTS, or JOINT CAPSULE, especially of the hands, wrists, or feet. They are not true cysts as they lack epithelial wall. They are distinguished from SYNOVIAL CYSTS by the lack of communication with a joint cavity or the SYNOVIAL MEMBRANE.

Roentgenography of a joint, usually after injection of either positive or negative contrast medium.

Cysts found in the jaws and arising from epithelium involved in tooth formation. They include follicular cysts (e.g., primordial cyst, dentigerous cyst, multilocular cyst), lateral periodontal cysts, and radicular cysts. They may become keratinized (odontogenic keratocysts). Follicular cysts may give rise to ameloblastomas and, in rare cases, undergo malignant transformation.

Benign unilocular lytic areas in the proximal end of a long bone with well defined and narrow endosteal margins. The cysts contain fluid and the cyst walls may contain some giant cells. Bone cysts usually occur in males between the ages 3-15 years.

Surgical procedure to relax the JOINT CAPSULE tissues in a joint that has a reduced range of motion due to CONTRACTURE or TISSUE ADHESIONS or joint deformities.

Search BioPortfolio:

Relevant Topics

Latest News Clinical Trials Research Drugs Reports Corporate
Rheumatology is the medical specialty concerned with the diagnosis and management of disease involving joints, tendons, muscles, ligaments and associated structures (Oxford Medical Dictionary). It is an active area of medical research, because of the d...

Latest News Clinical Trials Research Drugs Reports Corporate
Dermatology is the medical specialty concerned with the diagnosis and treatment of skin disorders (Oxford Medical Dictionary). As well as studying how the skin works, dermatology covers a range of diseases including skin allergies, alopecia, Behcet'...