Date : 00.00.00
Name of the Patient : Abc Xyzli C. lmn / F / 28 yrs.
Referred by : Dr. Abc Xyzlaji / Dr. Abc Xyzakantan.
Examination : M.R.I. of the Distal Left Femur.
CLINICAL PROFILE :
C/O pain in the left knee joint since 1 month.
M.R.I of the distal left femur was performed using the following parameters :
4 mm thick T1 Weighted coronal and sagittal images.
7 mm thick T1 Weighted and T2 Weighted (with fat saturation) axial images.
4 mm thick GRASS sagittal images.
5 mm thick STIR coronal images.
There is seen a metaphyseal bony outgrowth along the antero- lateral margin of the distal left femur, just proximal to the lateral femoral condyle. The base of this lesion is approximately 3.0 cms from the distal margin of the lateral femoral condyle. The cortex and the marrow of this lesion are in continuity with the marrow of the left femur and show similar signal intensity characteristics. This lesion is seen to point away from the knee joint and represents an exostosis. A hyperintense lesion on the T2 Weighted and STIR images along the outer margin of the above described bony outgrowth represents the cartilagenous cap. This cartilagenous cap is approximately 5.0 mms in thickness.
Irregularly defined areas of hypointensity on the T1 Weighted images which turn slightly hyperintense on the T2 Weighted, GRASS and STIR images are seen within the visualized dialysis of the left femur. These may represent islands of hematopoietic marrow.
There is no other abnormal soft tissue lesion identified around the exostosis. No bone destruction is identified. The patello-femoral joint is also unremarkable. Indentation of the exostosis on the lateral patellar retinaculum is however noted.
The MRI features described above suggest an osteochondroma arising from the antero-lateral margin of the distal left femur, just proximal to the lateral femoral condyle. A cartilagenous cap is also noted which measures approximately 5.0 mms in width. No abnormal soft tissue mass lesion is identified around the lesion.