Abstract
Introduction: Bone marrow edema is the radiological term used in MR imaging, manifests as hypointense infiltration on T1-weighted images and high signal intensity on fat-saturated T2-weighted sequences (T2 FSE FAT SATURATED, T2-weighted short-tau inversion recovery (T2w-STIR)). Clinical case description: This article presents a series of clinical cases of patients with knee joint pain whose MR tomograms revealed lesions of the subchondral bone of the knee joint in the form of bone marrow edema that occurred without previous trauma. Depending on the nature of bone tissue edema and patient's anamnesis, the following diagnoses were made: aseptic necrosis of the condyle, subchondral fracture, osteochondritis, secondary osteonecrosis, osteoarthritis, septic arthritis and some others. The principles of differential diagnosis based on the peculiarities of the MRI picture of the patient are shown. Conclusion: Assessment of bone marrow edema detected on an MRI study for pain in the knee joint allows, in some cases, to timely clarify the diagnosis and prescribe treatment.
Published Version
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