Nomenclature of Subchondral Nonneoplastic Bone Lesions

Gorbachova, Tetyana; Amber, Ian; Beckmann, Nicholas M.; Bennett, D. Lee; Chang, Eric Y.; Davis, Leah; Gonzalez, Felix M.; Hansford, Barry G.; Howe, Benjamin M.; Lenchik, Leon; Winalski, Carl S.; Bredella, Miriam A.

doi:10.2214/ajr.19.21571

Cited by 51 publications

(72 citation statements)

References 111 publications

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“…The medullary changes correspond to depleted cellular elements replaced by proteinaceous material [39]. This MRI findings may be referred to as "edema-like signal intensity" and "bone marrow edema-like signal intensity" [40]. In femoral neck OOs, this edema-like pattern may present a half-moon appearance with its base lying on the cortex ("half-moon sign") ( Fig.…”

Section: Magnetic Resonance Imagingmentioning

confidence: 99%

Osteoid osteoma of the hip: imaging features

et al. 2020

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Osteoid osteoma (OO), a small bone tumor relatively common in young subjects, frequently involves the hip. In addition to typical findings, we emphasize unsuspected clinical and imaging features including painless OO causing limping gait, non-visibility of totally mineralized nidus, absence of hyperostosis or adjacent edema, and recurrence at distance from the initial location. We also discuss the option of medical treatment for some cases of deep hip locations.

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Section: Magnetic Resonance Imagingmentioning

confidence: 99%

Osteoid osteoma of the hip: imaging features

et al. 2020

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“…A bone marrow edema-like signal refers to ill-defined areas of increased signal intensity on fluid-sensitive sequences that do not completely replace marrow fat on T1-weighted images (Figure 1). Osteochondral fractures are diagnosed when there is a contour deformity or a fracture line that disrupts articular cartilage and subchondral bone plate; subchondral fractures are defined by the presence of a subchondral fracture line that does not violate the articular surface ( Figure 1); bone contusions manifest as an edema-like bone marrow signal without a contour deformity or discrete fracture line [2].…”

Section: Osseous Structures and Cartilagementioning

confidence: 99%

Magnetic resonance imaging of the ankle and foot

Gorbachova¹

2020

Pol J Radiol

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This article reviews the magnetic resonance imaging (MRI) findings of the normal anatomy and various pathologic conditions of the ankle and foot commonly encountered in clinical practice. The spectrum of entities discussed includes osseous and osteochondral injuries, ligamentous injuries, common traumatic and degenerative tendon pathology, abnormalities of transverse tarsal joint (Chopart) and tarsometatarsal joint (Lisfranc) complexes, pathological conditions affecting capsuloligamentous structures of the great toe and lesser toes, as well as pedal infection, with a focus on diabetic osteomyelitis and neuropathic osteoarthropathy.

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“…The term edema-like marrow signal intensity (ELMSI) represents a general term describing an area of abnormal signal intensity (SI) at MRI [1]. Currently, the term "ELMSI" replaces the old term "bone marrow edema," which more properly represents a histopathological diagnosis, with the finding of an eosinophilic bone marrow extracellular fluid and swollen fat cells [1].…”

Section: Introductionmentioning

confidence: 99%

“…These areas of abnormal SI appear in very different conditions and are caused by various physiological and pathological processes. This SI alteration is usually caused by a pathologically detectable edema but can be also induced by medullary necrosis or blood products collection [1].…”

Section: Introductionmentioning

confidence: 99%

Edema-like marrow signal intensity: a narrative review with a pictorial essay

et al. 2020

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The term edema-like marrow signal intensity (ELMSI) represents a general term describing an area of abnormal signal intensity at MRI. Its appearance includes absence of clear margins and the possibility of exceeding well-defined anatomical borders (for example, physeal scars). We can define “ELMSI with unknown cause” an entity where the characteristic MR appearance is associated with the absence of specific signs of an underlying condition. However, it is more often an important finding indicating the presence of an underlying disease, and we describe this case as “ELMSI with known cause.” It presents a dynamic behavior and its evolution can largely vary. It initially corresponds to an acute inflammatory response with edema, before being variably replaced by more permanent marrow remodeling changes such as fibrosis or myxomatous connective tissue that can occur over time. It is important to study ELMSI variations over time in order to evaluate the activity state and therapeutic response of an inflammatory chronic joint disease, the resolution of a trauma, and the severity of an osteoarthritis. We propose a narrative review of the literature dealing with various subjects about this challenging topic that is imaging, temporal evolution, etiology, differential diagnoses, and possible organization, together with a pictorial essay.

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Nomenclature of Subchondral Nonneoplastic Bone Lesions

Cited by 51 publications

References 111 publications

Osteoid osteoma of the hip: imaging features

Osteoid osteoma of the hip: imaging features

Magnetic resonance imaging of the ankle and foot

Edema-like marrow signal intensity: a narrative review with a pictorial essay

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