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Table 2 Lesions identified on baseline scans in 2.3% of healthy subjects (14 of 601)

From: What is the clinical and ethical importance of incidental abnormalities found by knee MRI?

Lesion Gender Age in years Outcome (investigation: final diagnosis/diagnoses)
Enchondroma Female 54 Panel review: enchondroma
Enchondroma Female 57 Panel review: enchondroma
Intramedullary lesion Female 56 Panel review: benign enchondroma
Enchondroma Female 61 X-ray, multi-slice computed tomography, panel review: lobulated enchondroma
Enchondroma Male 72 X-ray, panel review: enchondroma
Marrow hyperplasia Female 50 Physician review: haemoglobin 13.2 g/dL, blood donor, no additional reason for marrow hyperplasia
Marrow hyperplasia Female 52 Haematological review: known anemia secondary to bleeding
Marrow hyperplasia Female 54 Physician review: full blood examination stable over 2 years, no reason for marrow hyperplasia identified
Marrow hyperplasia Female 60 Haematological review: anemia identified and treated
Ganglion Male 73 Orthopedic surgeon and panel review: neuroma or soft tissue lesion identified. Ganglion likely. Differential diagnoses: haemangioma. Meniscal tear, chondromalacia patellae
Geode Male 66 X-ray, MRI: medial meniscal tear, cartilage loss, medial femoral condyle and patellar cartilage, reactive marrow oedema, infra-patellar bursitis, osseous ganglion
Fibrous cortical defect Female 52 X-ray, MRI: healed fibrous cortical defect
Baker cyst, atypical Male 60 MRI: grade IV chondromalacia patella, medial meniscal tear, atypical Baker cyst (posteromedial joint line)
Ganglion Female 63 Panel review: ganglion
  1. MRI, magnetic resonance imaging.