Mandibular Cemento‑ossifying Fibroma.

Cemento‑ossifying fibroma is a benign tumor of the jaws with a mixed radiolucent-radiopaque appearance and causes root resorption and bone expansion.

Pseudohypertrophy Medial Gastrocnemius Muscle due to Chronic Radiculopathy.

Denervation pseudohypertrophy of the medial gastrocnemius muscle is an uncommon cause of calf swelling that may be secondary to chronic radiculopathy.

History Page: Milestones in the History of the European Society of Musculoskeletal Radiology.

This history page is dedicated to the history of the European Society of Musculoskeletal Radiology (ESSR), a relatively young radiologic society dedicated to musculoskeletal radiology. Since its very modest beginnings in 1993, the society has gradually grown to become one of the largest and most respected subspecialty imaging societies in and beyond Europe.

Tophaceous Gout Mimicking a Neoplasm of the Patella.

Tophaceous gout of the patella and extensor apparatus of the knee can mimic a musculoskeletal neoplasm. Considering gout, correlation with clinical history and presentation, and meticulous analysis of imaging semiology are key to a correct diagnosis. The most useful signs are periarticular erosion with overhanging edges, increased soft tissue on radiography and computed tomography, the "snowstorm sign" on ultrasound, variable signal and enhancement, bandlike infiltration of tendons, and osseous erosions with no or little bone marrow edema on magnetic resonance imaging.

Extradigital Glomus Tumor at the Elbow.

Extradigital glomus tumor should be considered in the differential diagnosis of a highly vascular solid lesion that is painful on palpation.

Heterotopic Ossification of the Indirect Head of the Rectus Femoris.

The clues to the correct diagnosis of heterotopic ossification of the indirect head of the rectus femoris are its location above the acetabular rim and its (inverted) comma‑like morphology.

History Page: Leaders in MSK Radiology: Hooshang Taybi, 1919-2006.

This history page is dedicated to the memory and achievements of the pediatric radiologist Hooshang Taybi whose name is associated with the Rubinstein-Taybi syndrome, Taybi syndrome, and Taybi-Linder syndrome.

History Page: Leaders in MSK Radiology: Stanislas de Sèze, 1903-2000.

This history page is dedicated to the memory and achievements of the French rheumatologist Stanislas de Sèze whose name is connected to the so-called de Sèze view, used to evaluate the sacroiliac joints, the lumbar and lower thoracic spine, pelvis, and hip joints on a single anteroposterior radiograph.

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.

Palmar Divergent Dislocation of the Scaphoid and Lunate.

Palmar dislocation of the scaphoid and lunate is an extremely uncommon injury that warrants early diagnosis and treatment to avoid complications such as median nerve dysfunction, avascular necrosis, and premature osteoarthritis.

Psoriatic Dactylitis with Onychodystrophy.

Magnetic resonance imaging (MRI) and ultrasound may be useful to assess the extent of onychodystrophy associated with psoriatic dactylitis by showing nail bed thickening, matrix changes, and vascularity indicative of active inflammation.

Benign Hyperostosis of the Rib.

Benign hyperostosis of the rib is a benign entity consisting of a stress phenomenon that should not be confused with Paget, fibrous dysplasia, or osteoblastic metastasis.

Imaging of musculoskeletal tuberculosis.

Tuberculosis (TB) represents a major public health problem worldwide. Any tissue may be infected. Involvement of the musculoskeletal (MSK) system account for 1-3% of all tuberculous infections.

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.

Top 15 musculoskeletal lesions in the aging recreational sporter: a pictorial review.

Because of the increased life expectancy, the aging population can participate in recreational sports activities. The fact that activity is promoted as having a positive effect on mental and physical health is another factor that may contribute to a trend of increased participation in sports activities by middle-aged and older patients. Due to age-related degeneration of tendons, muscles, joints and decreasing Bone Mineral Density, the musculoskeletal (MSK) system in the aging patient is more vulnerable to trauma.

Results of an International Survey on Spinal Imaging by the ASNR/ASSR/ESNR/ESSR "Nomenclature 3.0" Working Group.

Our goal was to determine if "Nomenclature 2.0," the classification of lumbar disk pathology consensus, should be updated. We conducted a social media and e-mail-based survey on preferences regarding the use of classification on magnetic resonance spine reporting.

Imaging of the Craniocervical Junction: A Pictorial Review.

The craniocervical junction (CCJ) is a complex anatomical structure comprising the occiput, the atlas, and the axis. The CCJ plays an important role in maintaining stability, providing protection, and supporting neurovascular structures. The CCJ can be affected by a wide range of congenital variants and traumatic, degenerative, inflammatory, and tumoral pathologies.

Complications of the Rigid Spine.

We present a short overview of the most common causes and imaging findings of a rigid spine including long-standing spondylarthritis, diffuse idiopathic skeletal hyperostosis, and the less common ossification of the posterior longitudinal ligament. The article also focuses on the pathogenesis and imaging findings of acute complications of the rigid spine due to fractures. These fractures may occur even after minor trauma and are difficult to detect on initial radiographs, resulting in a delayed diagnosis.

History Page: Leaders in MSK Radiology Maxime Ménard, 1872-1926.

This history page in the series "Leaders in Musculoskeletal Radiology" is dedicated to the memory and achievements of French radiologist Maxime Ménard, whose name is associated with the Shenton-Ménard line that Ménard described independently with the British radiologist Edward Shenton. This landmark line describes the relationship of the proximal femur to the acetabulum in hip dysplasia and fractures of the femoral neck.

Calcified Intervertebral Disc Herniation in a Child.

Calcified intervertebral disc herniation in children is rare, and spontaneous resolution is the rule.