Name of the Patient : Abc Xyz R. lmn / M / 35 yrs.
Referred by : Dr. Abc Xyz. Shah.
Examination : M.R.I. of Both Hips.
CLINICAL PROFILE :
C/O pain in the right hip joint since 3 years.
M.R.I of both hips was performed using the following parameters :
5 mm thick T1 Weighted and STIR coronal images.
5 mm thick T1 Weighted and T2 Weighted axial images.
5 mm thick T1 Weighted and T2 Weighted (with fat saturation) sagittal images.
There is seen an approximately 1.0 cm diameter sized, well marginated, hypointense lesion on the T1 Weighted images along the anterior margin of the neck of the right femur more towards the head-neck junction. This lesion follows the signal characteristics of fluid, on all the pulse sequences. Around this lesion, there is a 5.0 mms rim of marrow signal which is demarcated from the normal marrow by a hypointense rim on all the pulse sequences. There is no cortical thickening or bone erosion or destruction seen. There is no perilesional edema. There is a small right hip joint effusion.
A focal hyperintense signal on the T2 Weighted and STIR images is noted in the subchondral region in the roof of the right acetabulum, laterally.
A bone island is noted in the roof of the left acetabulum and in the left femoral head.
The articular cartilages are unremarkable on either side.
There is slight decrease in the bulk of the right hip joint as compared to the left.
1. Focal altered signal along the anterior margin of the neck of the right femur more towards the head-neck junction as described, is not specific for a single etiology. The signal characterisitics favours the diagnosis of a benign cyst.
The possibility of an osteoid osteoma seems less likely.
2. Focal altered signal in the roof of the right acetabulum is also not specific for a single etiology.
A subarticular cyst is a likely possibility.