Does Immobilization Post Injection Reduce Contrast Extravasation in MR Arthrography of the Shoulder?

Background: Contrast leakage after arthrography is common. We sought to investigate if immobilization could prevent it.

Purpose: The purpose of this study was to determine the effects on contrast extravasation and image quality produced by strict immobilization of the shoulder between arthrography puncture and subsequent MR imaging.

Sonographic evaluation of the plantar fascia in asymptomatic subjects.

Purpose: To evaluate the appearance of the plantar fascia in asymptomatic subjects.

Materials And Methods: Thirty-one asymptomatic subjects were examined by 2 musculoskeletal radiologists. The plantar fascia was evaluated for thickness, echogenicity, vascularity on power Doppler, rupture, fluid adjacent to the fascia, andcalcifications.

A bare area of the glenoid misdiagnosed as a cartilage ulceration.

We report on a 17-year-old girl who developed shoulder pain after a fall on an outstretched arm. CT arthrography and MR imaging demonstrated a cartilage defect centrally located in the glenoid. This was accompanied by an eroded appearance of the underlying bone.

Pigmented villonodular synovitis of the midfoot.

A 60-year-old man presented with a longstanding slowly growing swelling at the dorsal aspect of the left midfoot. The lesion was imaged with CT, ultrasound, and MR. On CT bony erosions were evident.

An unusual case of cat-scratch disease of the knee: case report and differential diagnosis.

We present a case of a 16-year-old boy with a painful swelling in the popliteal fossa, slight fever, articular and muscle pain of 3 weeks duration. Plain radiography and MR examination were performed in order to characterize the lesion. Additionally to the poorly defined mass, 2 satellite nodules were shown.

Arthrographic and CT arthrographic findings in dorsal peripheral detachment of the triangular fibrocartilaginous complex.

Arthrography and CT arthrogram were evaluated in the diagnosis of dorsal peripheral detachment of the triangular fibrocartilaginous complex (TFCC) in the wrist. The imaging findings and medical records of 19 patients, who underwent surgical repair of a dorsal peripheral detachment of the TFCC, were retrospectively studied. Diagnoses were based on the results of the arthrography and CT arthrogram as well as on the clinical examination.

Proceedings of the SRBR-KBVR osteoarticular section meeting of June 29, 2004 in Antwerp. Cystic adventitial disease.

The purpose of this paper is to give a short review of the pathogenesis, imaging characteristics, differential diagnosis and current treatment of cystic adventitial disease.

Sonography of a rupture of the tendon of the extensor pollicis longus muscle: initial clinical experience and correlation with findings at cadaveric dissection.

Objective: The objectives of our study were to report our initial clinical experience with sonography of the wrist for diagnosing a proximal rupture of the tendon of the extensor pollicis longus (EPL) muscle and to perform sonographic-anatomic correlation of the EPL tendon.

Materials And Methods: Clinical and imaging files of five patients who underwent sonography and subsequent open wrist surgery were reviewed retrospectively. Imaging was performed by four radiologists experienced in musculoskeletal sonography.

MR imaging findings of bone marrow changes in patients with cystic fibrosis.

The purpose of this work was to evaluate bone marrow abnormalities in the lower limbs of patients with cystic fibrosis by means of MR imaging. Eight patients with cystic fibrosis ranging in age from 16 to 35 years (average age 25.1 years) were evaluated with MR imaging of the lower extremities.

Can bone marrow edema be seen on STIR images of the ankle and foot after 1 week of running?

Purpose: To evaluate whether initiation of running in sedentary individuals would lead to bone marrow edema on MR images, within the time span of 1 week.

Materials And Methods: The feet of 10 healthy volunteers were imaged by MR imaging before and after running during 30 min a day for 1 week. The images were evaluated by consensus of 2 musculoskeletal radiologists who graded the presence of bone marrow edema on a 4-point scale.

Meniscal tears: comparison of half-Fourier technique and conventional MR imaging.

Purpose: To determine whether half-Fourier MR image acquisition technique can provide similar information to that of conventional MR acquisition technique for evaluation of meniscal tears.

Materials And Methods: We studied 101 menisci in 52 patients who were referred for evaluation of meniscal tears. Sagittal MR images of the knee were obtained for all patients by using proton density and T2-weighted SE sequences on a 1-T clinical system.

MR imaging of meniscal cysts: evaluation of location and extension using a three-layer approach.

Purpose: To analyze the extension of medial and lateral meniscal cysts relative to the capuloligamentous planes of the knee.

Materials And Methods: The MR images of 32 patients with meniscal cysts were reviewed. The location and extension of the meniscal cysts with reference to the capsule and ligaments were recorded.

Tarsal tunnel syndrome: ultrasonographic and MRI features.

Tarsal tunnel syndrome is a well-known but rare entrapment neuropathy involving the posterior tibial nerve in the tarsal tunnel, a fibro-osseous channel extending from the medial aspect of the ankle to the midfoot. Posttraumatic fibrosis, ganglion cyst, tenosynovitis, tumor of the nerves or other structures, dilated or tortuous veins can cause significant nerve compression in this anatomic region. Herein, we present the typical ultrasonographic and magnetic resonance features of this disorder in patient with a ganglion cyst.

Benign papilloma of the bladder in a young adult.

Ultrasonographic and pathologic findings in a 26-year-old patient with a benign papilloma of the bladder are described. Ultrasound features include an irregular polypoid mass extending from the bladder wall.

Unusual location of an ovary: ultrasonographic features and surgical correlation.

We present a case of ectopic ovary in a 5-month-old baby presenting a firm nodule in the left labia majora. Ultrasonography was performed and revealed an ectopic ovary. The ectopic ovary was surgically returned in adnexial location.

MRI of extrapancreatic gastrinomas.

Preoperative diagnosis of gastrinoma--especially extrapancreatic gastrinoma--is very difficult. At the moment octreotide scintigraphy is considered the method of choice to detect gastrinomas. However, MRI may play a major role in the diagnostic imaging of gastrinoma.

Deep benign fibrous histiocytoma of the knee: CT and MR features with pathologic correlation.

Magnetic resonance imaging and pathologic findings in a 28-year-old patient with a giant deep benign fibrous histiocytoma in the popliteal fossa of the right knee are described. The MR imaging findings include a well-delineated oval mass with low signal intensity on T1-, and high signal intensity on T2-weighted, images, and marked peripheral contrast enhancement. To the best of our knowledge, this is the first report on the MR findings in this entity.

Glenoid dysplasia: radiographic and CT arthrographic findings.

A 60-year-old man with dysplasia of the glenoid and a rotator cuff tear is reported on. Because of the tear, CT arthrography was performed, offering an opportunity to evaluate the various soft tissue abnormalities accompanying glenoid dysplasia. Marked thickening of the glenoid cartilage and labrum was apparent, as well as an abnormal posterolateral orientation of the glenoid cavity.

Calcium hydroxyapatite deposition disease of the neck: finding in three patients.

Calcium hydroxyapatite deposition disease may occasionally involve the superolateral portion of the longus colli muscle. Clinical symptoms include headache, neck pain, and dysphagia. Characteristic prevertebral calcifications with the epicenter at the C1-C2 level are depicted on lateral radiographs of the cervical spine.

Subcutaneous granuloma annulare: MR imaging findings.

We present a case of subcutaneous granuloma annulare evaluated with MR imaging. The mass was poorly defined and showed thickened interconnecting strands with low signal intensity on T1- and T2-weighted MR images. When a poorly defined subcutaneous mass with low signal intensity on both T1- and T2-weighted MR images is observed in an otherwise healthy child, subcutaneous granuloma annulare should receive serious consideration.

Imaging in sports-medicine--knee.

Since the last decade, the introduction of Magnetic Resonance Imaging has provided a powerful new tool for the clinician to diagnose sports-related knee injuries. The main objective of this paper is to familiarise the relevant specialists with the proven clinical indications and semiology of MRI of the knee. At the present time, the knee joint is the area in which the advantages of MRI are most spectacularly apparent.

[A "good choice" of diagnostic imaging examinations: the knee].

A medically sound and cost-effective choice of diagnostic imaging investigations in knee pathology must be supported by a good evaluation of the respective strong and weak points of the available methods. These are: conventional radiology, C.T.

Giant cell tumor of the tendon sheath in the knee.

The clinical, imaging and pathologic findings in a 28-year-old patient with a giant cell tumor of the tendon sheath in the knee are reported.

A patient with Peyronie's disease: ultrasonographic features.

Clinical, radiographic, and ultrasonographic findings in a 45-year-old patient with Peyronie's disease are reported. Ultrasonography precisely identified calcified as well as fibrous plaques characteristic of this disorder.