ke/bv/nl/nl
Date : 00.00.00

Name of the Patient : Abc Xyzra Jalmn / M / 29 yrs.
Referred by : Dr. Abc Xyznna.
Examination : M.R.I. of the S. I. Joints.

CLINICAL PROFILE :

C/O pain in the right hip region since 6 months.
H/O fever, on and off.

EXAMINATION :

M.R.I of the S. I. joints was performed using the following parameters :

5 mm thick T1 Weighted and T2 Weighted (with fat saturation) axial images.

5 mm thick T1 Weighted and STIR coronal images.

OBSERVATION :

There is replacement of the normal marrow of the right sacral ala and the iliac bone adjacent to the sacro-iliac joint by hypointense areas on the T1 Weighted images. This is seen to turn hyperintense on the T2 Weighted and STIR images. There is suggestion of erosion of the cortex on the mid one third portion with involvement of the right S. I. joint space. Subtle hyperintense signal is seen in the adjacent soft tissue on the T2 Weighted and STIR images suggestive of inflammatory edema.

There is an intermediate signal intensity lesion with hypointense centre on the T1 Weighted images anterior to the right S. I. joint which is seen to turn hyperintense on the T2 Weighted images and would represent an abscess formation. There is resultant displacement of the right ilio-psoas muscle anteriorly. This pathology is in close proximity to the right lumbo-sacral plexus.



The left sacro-iliac joint appear normal. The left iliac bone and the sacral ala show normal signal intensity.

The hip joints are unremarkable.

The visualized musculature of the pelvis appears normal.

IMPRESSION :

The MRI features are suggestive of altered signal in the right sacral ala and the iliac bone with involvement of the right sacro-iliac joint space with abscess formation is most likely due to a granulomatous infective process like tuberculosis.