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Authored By: MSU Radiology, Richard Menzel D.O.
History: 15 year old femalewith right knee injury.
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Findings: There is a 1 cm horizontal subchondral signal abnormality on the weight-bearing surface of the lateral femoral condyle. There is increased T2 signal diffusely surrounding this lesion. There is no distinct cartilaginous defect adjacent to this region. There is normal appearing cartilage throughout the rest of the knee. There is no other abnormal bone marrow signal.
DDx: Subchondral fracture.Osteonecrosis.Transient bone marrow edema syndrome.
Diagnosis: Right knee subchondral impaction fracture.
References: Statdx.Dr. Farah, M.D.
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Case Number: 9510295Last Updated: 06/21/2013

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Anatomy: Skeletal System   Pathology: Other
Modality: Conventional Radiograph, MRAccess Level: Readable by all users
Tracking: Case Editor
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Certified Certified by Gerald Aben on 07/17/2012