A man in his 40 s with knee injury. MRI of knee shows avulsion of tibial attachment of PCL. Separation is seen from parent bone. PCL itself is intact with bone fragment.Classic PCL avulsion injury.

 

A 5 yr child with heel ulcer. MRI of ankle shows lesion in plantar part of Calcaneum. Rim of T1 hyperintensity is seen which represents Penumbra sign, characteristic for subacute osteomyelitis ( Left image arrows).Lesion is eroding into heel soft tissue with ulceration.

MRI of Thumb planning is different from other fingers, being oblique to rest of fingers. Coronal and sagittal sections should be planned on axial thumb separately, which allows for correct evaluation of structures especially collateral ligaments.

 

An adolescent boy with left hip pain.
MRI shows widened physis in left hip, without much displacement of epiphysis.
Normal right side physis. (associated obesity)
Preslip stage of SCFE.

 

A child with choledochal cyst.MRCP shows fusiform dilatation of CBD ( single arrow). Also seen is abnormal pancreatobiliary junction outside the duodenal wall, with long common channel (paired arrows).There is potential increased risk for biliary tract neoplasia.

 

A woman in 60 s with right posterior hip pain. MRI hips axial shows near complete avulsion of attachment at ischial tuberosity which includes medial part conjoint tendon formed by biceps and semitendinosus and lateral part formed by semimembranosus. Normal attachment seen on left side.

 

A young man in 20 s for evaluation of pubic pain. MRI showed bone marrow edema in right pubic bone. Partial tear seen in right adductor-rectus aponeurosis attachment to pubic bone - linear T2 hyperintense line superficial to pubic bone ( top image).Normal on left side. T2 sagittal focused on pubic bone is helpful in identifying abnormality.There is recent history of abdominal crunch exercises. Athletic pubalgia.

 

        MRI wrist showing lunato triquetral bony coalition.