sb/hs/rg.
Name of the Patient : Abc Xyz Khalmn / M / 15 yrs.
Referred by : Dr. Abc Xyzah.
Examination : M.R.I. of the Right Knee Joint.
CLINICAL PROFILE :
C/O pain in the right knee joint since 7 months.
Alleged H/O fall from a tree prior to this.
EXAMINATION :
M.R.I of the right knee joint was performed using the following parameters :
4 mm thick T1 Weighted and GRASS sagittal images.
5 mm thick T1 Weighted and STIR coronal images.
5 mm thick T1 Weighted and Fast Scan (T2 *) axial images.
OBSERVATION :
There is seen an approximately 3.8 x 4.8 x 5.5 cms sized well-marginated, mass lesion in the distal femoral epiphysis of the right femur, medially. This lesion is of intermediate signal on the T1 Weighted images and appears heterogeneously hyperintense on the GRASS and STIR images. Cystic/necrotic areas are noted within the lesion. The lesion is seen to extend into the distal metaphysis of the right femur through the physeal plate. There is a probable break in the cortex along the medial and posterior margins of the epiphysis of the medial condyle of the distal right femur with extension of the lesion into the soft tissues around the distal right femur, medially. There is resultant medial displacement of the medial collateral ligament. There is probable extension of the lesion into the intercondylar notch of the distal right femur.
Scan-00006
There is a linear hyperintense signal on all the pulse sequences in the posterior horn of the medial meniscus of the right knee joint extending upto the inferior articular margin. This represents a horizontal flap tear.
The rest of the menisci, cruciate ligaments and the lateral collateral ligament are unremarkable. The patellar tendon and Hoffas fat pad are unremarkable. There is no right knee joint effusion.
IMPRESSION :
An approximately 3.8 x 4.8 x 5.5 cms sized well-marginated, mass lesion in the distal femoral epiphysis on the right, medially with signal characteristics and extensions is not specific for a single etiology. This most likely represents a giant cell tumor. An aneurysmal bone cyst may be considered as a differential diagnosis.