Presentation
Pain in left thigh and left hip.
Patient Data
Age: 30 years
Gender: Male
From the case:
Bone infarct in femur and avascular necrosis of left hip
{"current_user":null,"step_through_annotations":true,"access":{"can_edit":false,"can_download":true,"can_toggle_annotations":true,"can_feature":false,"can_examine_pipeline_reports":false,"can_pin":false},"extraPropsURL":"/studies/17113/annotated_viewer_json?iframe=true\u0026lang=us"}
A geographic area of altered signal intensity is seen in marrow of distal femur with 'double line sign' on T2W images and peripheral marrow edema on STIR images
From the case:
Bone infarct in femur and avascular necrosis of left hip
{"current_user":null,"step_through_annotations":true,"access":{"can_edit":false,"can_download":true,"can_toggle_annotations":true,"can_feature":false,"can_examine_pipeline_reports":false,"can_pin":false},"extraPropsURL":"/studies/17114/annotated_viewer_json?iframe=true\u0026lang=us"}
A serpiginous area of altered signal intensity seen in head of left femur, showing 'fat signal', and 'double line' sign.
Case Discussion
Findings suggest medullary bone infarct in femur, and Mitchell Class A avascular necrosis of left hip.