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KATYA POLISHCHUK's EIGHTH MRI REPORT
OREGON IMAGING CENTERS
Date of Service:
7/10/2006 11:44 AM
(OIC) - MR BRAIN WO&W CONTRAST
SIGNS AND SYMPTOMS: Follow up brain tumor.
MRI BRAIN - WITH AND WITHOUT CONTRAST
When compared to the prior exam of 4/14/06, there is
increased enhancement and edema surrounding the mass
centered on the left pons.
Findings suggest progression of disease.
Interval development of an enhancing mass within the
subependymal region of the frontal horn of the right lateral
ventricle most likely represents metastatic
disease, possibly from subependymal spread of tumor.
3. There is no evidence of hydrocephalus. The right
ventricular shunt catheter is
INDICATION: Brain tumor.
A magnetic resonance imager was used to obtain
multiplanar T1, T2 and spin density-weighted images
before contrast. Multiplanar T1-weighted images
following the injection of IV Magnevist, 3cc, were also acquired.
No sedation was used during this exam. The exam is
COMPARISON: 4/14/06, 3/3/06, 12/20/05, and 8/11/05.
There is a 2.9 x 2.7 x 1.9 cm heterogeneously enhancing mass
identified within the left pons. There is abnormal increased T2 signal
intensity surrounding the enhancement
consistent with vasogenic edema and tumor.
Both the enhancement and T2 hyperintensity
surrounding the enhancement have progressed
during the interval. There is more
mass effect on the 4th ventricle on the current study.
The mass surrounds the basal artery as well.
There is effacement of the prepontine cistern as well as the CSF spaces
around the foramen magnum.
A ventricular shunt from a right frontal approach is again identified.
There is no evidence of hydrocephalus.
There is a 1.2 x 1.2 x 1.2 cm enhancing mass identified within the
subependymal region of the frontal
horn of the right lateral ventricle. This lesion is a new finding when
compared to the prior exam and this likely represents metastatic
disease. No significant extra-axial fluid is seen.
The paranasal sinuses are well aerated.
The bones demonstrate surgical changes from the shunt placement.
Interpreted by GUPTA, AKSHAY, S MD, Radiology Assoc.