Magnetic resonance imaging characteristics of musculoskeletal hydatid disease.

Background: Hydatid disease is a parasitic infection seen in endemic areas. Musculoskeletal hydatid disease is rarely reported.

Purpose: To describe the magnetic resonance imaging (MRI) features of musculoskeletal hydatid disease and to highlight the specific findings in the diagnosis of hydatid cysts.

Soft tissue tumor imaging in adults: whole-body staging in sarcoma, non-malignant entities requiring special algorithms, pitfalls and special imaging aspects. Guidelines 2024 from the European Society of Musculoskeletal Radiology (ESSR).

Objectives: The revised European Society of Musculoskeletal Radiology (ESSR) consensus guidelines on soft tissue tumor imaging represent an update of 2015 after technical advancements, further insights into specific entities, and revised World Health Organization (2020) and AJCC (2017) classifications. This second of three papers covers algorithms once histology is confirmed: (1) standardized whole-body staging, (2) special algorithms for non-malignant entities, and (3) multiplicity, genetic tumor syndromes, and pitfalls.

Materials And Methods: A validated Delphi method based on peer-reviewed literature was used to derive consensus among a panel of 46 specialized musculoskeletal radiologists from 12 European countries.

Soft tissue tumor imaging in adults: European Society of Musculoskeletal Radiology-Guidelines 2023-overview, and primary local imaging: how and where?

Objectives: Early, accurate diagnosis is crucial for the prognosis of patients with soft tissue sarcomas. To this end, standardization of imaging algorithms, technical requirements, and reporting is therefore a prerequisite. Since the first European Society of Musculoskeletal Radiology (ESSR) consensus in 2015, technical achievements, further insights into specific entities, and the revised WHO-classification (2020) and AJCC staging system (2017) made an update necessary.

Tumor-like Lesions of Bone and Soft Tissues and Imaging Tips for Differential Diagnosis.

In the musculoskeletal system, tumor-like lesions may present similar imaging findings as bone and soft tissue tumors and can be defined as tumors on radiologic examinations. Misinterpretation of the imaging findings can lead to inappropriate clinical management of the patient.There is still some debate regarding the pathophysiology and origin of tumor-like lesions that include congenital, developmental, inflammatory, infectious, metabolic, reactive, posttraumatic, post-therapeutic changes, and some miscellaneous entities causing structural changes.

Primary tumors of the spine.

Spinal tumors consist of a large spectrum of various histologic entities. Multiple spinal lesions frequently represent known metastatic disease or lymphoproliferative disease. In solitary lesions primary neoplasms of the spine should be considered.

The value of magnetic resonance arthrography in the evaluation of repaired menisci.

Aim: To evaluate the diagnostic value of direct magnetic resonance (MR) arthrography in detection of re-torn or unhealed menisci which were previously repaired.

Materials And Methods: Twenty-six menisci of 24 symptomatic patients who had undergone a meniscus repair surgery were included in this retrospective study. These patients had been evaluated with gadolinium-enhanced direct MR arthrography.

Pitfalls in MR imaging of musculoskeletal tumors.

A wide range of musculoskeletal tumors and tumor-like conditions may be encountered when patients undergo radiologic examinations. Although MR imaging is a powerful medical imaging method that has been used extensively in the evaluation of musculoskeletal tumors, nontumoral or tumorlike lesions may have similar imaging findings. The imaging features of certain normal, reactive, benign neoplastic, inflammatory, traumatic, or degenerative processes in the musculoskeletal system may mimic malignant tumors.

Musculoskeletal hydatid disease.

Hydatid disease is an infectious disease caused by the larval stage of the parasitic tapeworm Echinococcosis granulosus. Its distribution is worldwide. Although hydatid disease can develop in almost any part of the body, it is most commonly found in the liver and lung.

Musculoskeletal brucellosis.

Brucellosis is a zoonosis of worldwide distribution caused by small gram-negative nonencapsulated coccobacilli of the genus Brucella. It is characterized by a granulomatous reaction in the reticuloendothelial system. Because it affects several organs and tissues, it may have various clinical manifestations.

[Imaging of articular cartilage].

There have been many improvements in joint cartilage imaging in recent years with the development of new imaging methods. The purpose of cartilage imaging is to assess the integrity of the cartilage surface, the thickness and volume of the cartilage matrix and its relationship with the subchondral bone. Direct radiography, the conventional imaging method for the skeletal system, is not sufficient for assessing the joint cartilage, nor are arthrography, computed tomography, and arthrography together with computed tomography.

Solitary osteochondroma causing popliteal pseudoaneurysm that presented as a mass lesion.

Osteochondromas are the most frequently occurring bone tumors and can rarely lead to vascular complications. A 14-year-old boy with solitary exostosis of the right femur presented with a mass lesion at the posterior aspect of the thigh. Radiological studies demonstrated a popliteal artery pseudoaneurysm.

The level of quality of radiology services in Turkey: a sampling analysis.

Purpose: To determine the quality of radiographs, which have been referred from 40 different institutions for consultation, to discuss the causes of wasted resources, and to present possible solutions.

Materials And Methods: Five experienced radiology instructors determined the types of radiological examinations referred for consultation (conventional radiography, mammography, computed tomography and magnetic resonance imaging), the institutions at which they were performed (university or state hospital, private health center), and assessed the coverage area, field of vision (FOV), and dosage of x-ray. They also investigated problems in film processing, defects in sequence-printing windows, checked window levels, and checked the amount and timing of contrast material used.

The safety and efficacy of intraarticular hyaluronan with/without corticosteroid in knee osteoarthritis: 1-year, single-blind, randomized study.

The goal of this study was to assess the safety and efficacy of hyaluronan (HA) with/without corticosteroid in patients with knee osteoarthritis (OA). In a 1-year, randomized, single-blind trial, 24 patients were treated with HA weekly for 3 weeks, then three injections on the 6th month for a total of six injections. Sixteen patients were treated the same but with the addition of 1 ml triamcinolone acetonide prior to the first and fourth HA injection.

Parasitic and fungal disease of bones and joints.

Among the musculoskeletal infections, fungal and parasitic diseases are infrequent and may have a nonspecific imaging factor. The incidences of fungal and parasitic bone infections are related to geographic distribution, ethnic and nutritional factors, and occupation. Immunocompromise and ease of travel can lead to increased incidence.

[Ganglion cysts of the knee originating from tendons and ligaments].

Purpose: To investigate the clinical features and MR imaging findings of the ganglion cysts arising from the tendons and ligaments of the knee.

Materials And Methods: One thousand six hundred and twenty knee MR examinations that had been performed in a three-year period were evaluated retrospectively for the presence of ganglion cysts originating from tendons or ligaments. Clinical findings and MRI features of the lesions were noted.

MRI evaluation of patellar tendon defect after harvesting its central third.

Purpose: the purpose of this study was to evaluate defect width of patellar tendon after harvest for anterior cruciate ligament reconstruction.

Materials And Methods: we performed MRI at various time interval after graft harvest (2-96 months) on 28 patients who had had reconstruction of the anterior cruciate ligament using mid-third patellar tendon. T1 and T2 weighted axial images were obtained to assess donor site defect of the patellar tendon.

[Case report: MRI findings in gout].

MR imaging is not routinely used for the evaluation of tophaceous gout. However, gout may have atypical clinical and radiologic findings. It should be considered in the differential diagnosis when a mass reveals heterogeneous and low signal intensity on T2 weighted images.

[Diagnostic imaging of the rotator cuff].

The importance of imaging modalities in the evaluation of the rotator cuff has increased thanks to the development of non-invasive methods. An optimum application of the technique, appreciation of the anatomical details and imaging pitfalls, and proper interpretation of clinical findings should be incorporated in order to increase diagnostic accuracy. Ultrasonography (US) and magnetic resonance imaging (MRI) are commonly used for rotator cuff pathologies.

Clear cell chondrosarcoma: unusual radiologic appearances with histologic correlation.

Clear cell chondrosarcoma is a rare variant of the bone tumors with distinct radiologic and pathologic features. In this report two cases of clear cell chondrosarcomas with atypical radiologic appearances are presented. The findings of X-ray films and MRI are described with histologic correlation.