Glomangiomatosis: a case report.

Glomangiomatosis is a benign vascular variant of a glomus tumor. The lesion represents only 5% of glomus tumors with unusual or atypical features and even fewer glomus tumors with typical features. The lesions are most commonly located in the distal extremities and are multiple, deep, extensive, and often pain producing.

Displaceability of SLAP lesion on shoulder MR arthrography with external rotation position.

Objective: To investigate the usefulness of the external rotation (ER) position on magnetic resonance (MR) arthrography for the diagnosis of superior labral anterior to posterior (SLAP) lesion.

Materials And Methods: Approval of institutional review board was obtained, and informed consent was waived. The MR arthrograms of 210 shoulders that were arthroscopically confirmed as SLAP lesion in 163 shoulders and intact superior labrum in 47 shoulders were retrospectively reviewed in each neutral and ER position for the diagnosis of SLAP lesion, the extent of distraction of the torn labrum, and the external rotation angle.

Primary alveolar soft part sarcoma of fibula demonstrating ASPL-TFE3 fusion: a case report and review of the literature.

Alveolar soft part sarcoma is a rare soft tissue tumor typically affecting young adults. These tumors are most often seen in the deep soft tissues of the extremities and patients generally present with advanced disease. Primary bone involvement is extremely rare and has only been reported in seven cases.

The accuracy of subacromial corticosteroid injections: a comparison of multiple methods.

Corticosteroids are commonly used in the treatment of the impingement syndrome. Efficacy, as well as accurate placement, have been questioned. The purpose of this prospective, randomized study is to assess the accuracy of subacromial injections and to correlate accuracy with short term clinical outcome at 3 months.

Traumatic sternal segment dislocation in a 19-month-old.

Sternal fractures in the pediatric population are uncommon. Traumatic sternal segment dislocation is even more unusual. Such injuries are typically considered to be the result of child abuse, until proven otherwise.

Efficacy and safety of hyaluronan treatment in combination therapy with home exercise for knee osteoarthritis pain.

Objective: To assess the efficacy and safety of intra-articular injections of sodium hyaluronate combined with a home exercise program (HEP) in the management of pain associated with osteoarthritis (OA) of the knee.

Design: Single-blinded, parallel-design, 1-year clinical study with sequential enrollment.

Setting: University-based outpatient physiatric practice.

Reliability analysis for radiographic measurement of limb length discrepancy: full-length standing anteroposterior radiograph versus scanogram.

Patients with limb length discrepancy (LLD) often have associated angular deformities requiring a standing full-length radiograph of the lower limb in addition to a scanogram. The purpose of our study was to determine the intraobserver and interobserver reliability of measuring LLD with both techniques, using computed radiography. The LLD was measured on 70 supine scanograms and standing anteroposterior radiographs of the lower extremity by 5 blinded observers on 2 separate occasions.

Muscle infarction in a 13 year-old female with type 1 diabetes mellitus of short duration.

A 13 year-old female with an 11-month history of type 1 diabetes mellitus (DM) was admitted to the hospital with a muscle infarction. Diagnosis of this rare complication of DM was suggested by clinical presentation, magnetic resonance imaging (MRI) and muscle biopsy. While diabetic muscle infarction (DMI) has been previously described in adult patients with long-standing DM associated with microangiopathy, it is an unexpected finding in this clinical setting.

Superficial soft-tissue masses of the extremities.

Superficial soft-tissue masses are among the most common indications for imaging of the extremities. A broad array of benign and malignant processes may be manifested in palpable cutaneous or subcutaneous masses or nodules. Most such lesions are treated with surgical excision, but some may be conservatively managed.

A translocation involving the placental growth factor gene is identified in an epithelioid hemangioendothelioma.

Hemangioendothelioma is a relatively rare vascular tumor that is considered a low- to intermediate-grade malignant neoplasm. Cytogenetic reports of hemangioendothelioma are rare. Two reports with translocations involving chromosomes 1 and 3 have been described.

Cortical chondroblastoma: report of a case and literature review of this lesion reported in unusual locations.

Chondroblastoma is a rare benign tumor occurring in adolescence and young adulthood, almost always involving the epiphysis of long bones. A 24-year-old man presented with a discrete soft-tissue lesion penetrating the cortex of the right distal femoral metadiaphyseal region. Biopsy revealed a chondroblastoma, and the patient subsequently underwent a total curettage of the lesion with cancellous bone graft from the iliac crest.

Granular cell tumor of the extremity: magnetic resonance imaging characteristics with pathologic correlation.

Objective: The purpose of this study is to delineate the magnetic resonance (MR) appearance of a granular cell tumor (GrCT) of the extremity and to correlate the imaging appearance with the microscopic findings.

Design And Patients: A retrospective review of five patients with a histopathologic diagnosis of GrCT and pre-operative MR imaging of the neoplasm was done. The images were reviewed by two musculoskeletal radiologists in a consensus fashion.

Traumatic venous varix causing sciatic neuropathy: case report.

Objective And Importance: Sciatic neuropathy rarely presents in nonpenetrating trauma because of protection of the nerve by the pelvis, the gluteal muscles, and the tissues in the posterior thigh. We present the case of a patient who fell and subsequently developed a traumatic venous varix of the inferior gluteal vein that caused compression sciatic neuropathy.

Clinical Presentation: Seven days after a fall onto her right buttock, the patient developed a painful burning paresthesia in her leg and numbness on the dorsum of her foot.

Complications after limb salvage surgery.

Orthopedic oncology patients gain a chance at an active, disease-free life through the use of limb salvage surgery. This goal is reached with meticulous technique, detailed operative planning, and the use of endoprosthetic replacements and/or bone grafting. This article will address the late complications of limb salvage surgery, including aseptic loosening, prosthetic fracture and dislocation, as well as graft fracture and nonunion.

Cervical Vertebral Trauma: Plain Film Approach.

The plain film assessment of cervical vertebral trauma remains a cornerstone of emergency radiology. An understanding of proper film technique, as well as a familiarity with the significant signs of cervical column injury will enable the radiologist to interpret the radiograph accurately. If further imaging studies are warranted, accurate interpretation of the plain films will insure that the proper study is obtained.

Osteomyelitis originating in and around bone infarcts: giant sequestrum phenomena.

Objective: We describe four cases of osteomyelitis that occurred in and around foci of preexisting osteonecrosis in the medullary cavity. Although sequestration is a well-known complication of osteomyelitis, there is little information known about infection occurring in proximity to large regions of already necrotic bone.

Conclusion: Osteomyelitis and bone infarction can be seen in the same patient population.

The influence of flip angle on the magic angle effect.

Objective: To assess the impact of flip angle with gradient sequences on the "magic angle effect". We characterized the magic angle effect in various gradient echo sequences and compared the signal-to-noise ratios present on these sequences with the signal-to-noise ratios of spin echo sequences.

Design: Ten normal healthy volunteers were positioned such that the flexor hallucis longus tendon remained at approximately at 55 degrees to the main magnetic field (the magic angle).

Avascular necrosis of bone in human immunodeficiency virus infected patients.

The objective of this article was to delineate the causes of avascular necrosis (AVN) in patients with human immunodeficiency virus (HIV). HIV-infected patients with pain in large joints were prospectively screened. Patients had radiographs and magnetic resonance imaging of their affected joints.

Mechanical environment affects allograft incorporation.

In a bilateral canine tibial model, the mechanical, radiologic, and histologic characteristics of intercalary allografts stabilized with locked intramedullary nails were compared with those of allografts fixed with compression plates. Both methods of fixation achieved healing to host bone. Tibiae that were plated had more callus with statistically greater mean torsional rigidity and strength than those treated with nails (paired t-test, p View Article and Find Full Text PDF

Filariasis of the ankle: magnetic resonance imaging.

Filariasis is a world health problem that is frequently seen in tropical and subtropical countries. In endemic areas, the clinical spectrum of extremity swelling, lymphangitis, or elephantiasis is usually recognized as filariasis. In the United States, diagnosis of the disease may be more difficult because of lack of familiarity with this infection.