Date : 00.00.00
Name of the Patient : Abc Xyzl lmn / F / 10 yrs.
Referred by : Dr. Abc Xyzrade.
Examination : M.R.I. of the Brain.
CLINICAL PROFILE :
Known C/O PNET, operated in February 0000. For follow up.
M.R.I of the brain was performed using the following parameters :
5 mm thick T1 Weighted, proton and T2 Weighted axial images.
5 mm thick FLAIR coronal images.
5 mm thick T1 Weighted sagittal images.
There is a large well-defined mass lesion in the right thalamus which is seen to extend superiorly into the right corona radiata and centrum semiovale and measures approximately 3.6 x 3.2 x 6.0 cms. The predominant portion of this lesion is hypointense to white matter on the T1 Weighted images and turns heterogeneously hyperintense on the proton, T2 Weighted and FLAIR images. Curvilinear hyperintense signal on the T1 Weighted images is seen at the periphery of this lesion which turns hypointense on the T2 Weighted images and would represent altered blood/calcification/paramagnetic substance deposition. An ill-defined hypointense area on the T1 Weighted images is seen antero-superior to this lesion which turns hyperintense on the proton, T2 Weighted and FLAIR images would represent edema. There is probable involvement of the body of the corpus callosum on the right side. There is mass effect with compression upon the body of the right ventricle and third ventricle with shift of the midline structures to the left.
A ventriculostomy tube tract is seen in the right posterior parietal region. Note is made of right frontal craniotomy with post-operative changes.
The fourth ventricle is normal.
No obvious vascular anomaly is identified on this study.
In a known C/O PNET, the MRI features are suggestive of a mass lesion measuring approximately 3.6 x 3.2 x 6.0 in the right corona radiata and centrum semiovale with mass effect and extensions as described, would represent residual/recurrent tumor.
No previous investigations were available for comparison.