Tuesday, December 16, 2014

Cavernous Angioma

 Gradient axial Brain image at the level of basal ganglia /  shows multiple variable sized foci with blooming effect.


 Gradient axial Brain image at the level of lateral ventricles /  shows multiple variable sized foci with blooming effect.


Brain MR angiography /  shows multiple cavernous angioma.
PROTOCOL:

T2W – Sagittal & axial scans

T1W – Axial scans
FLAIR – Coronal scans
T2FFE (Gradient) – Axial scans
3D TOF MR angiography of the circle of Willis vessels and MIP reconstruction.

FINDINGS:


-Evidence of multiple, variable sized foci of altered signal is seen in the brain parenchyma and cerebellum. These lesions characterized by variable shapes starting from mixed intensity core surrounded by hypo intense signal rim to hyper intense signal seen inside the lesion denoting hemorrhage; while in T2 and FLAIR images they show the same appearance with evident surrounding edema and in gradient images showing blooming effect.

-MR angiography reveals evidence of multiple vascular parenchymal lesions in the brain in addition to normal course, caliber and outlines of vessels of bilateral CA, ACA, MCA, PCA and their peripheral branches. Vertebro basilar trunk is also normal in appearance.
                  -Lateral and third ventricles are normal in size
                  and position. Septum is in midline.  There is no
                  midline shift (the right lateral ventricle is compressed
                  by one of the previously mentioned lesions but with
                  no definite enlargement).
-Basal cisterns, cortical sulci and gyri are normal in appearance.
-Sella is normal in appearance.
-Corpus callosum shows normal MR morphology.
-Brain stem and cerebellum show normal signal intensities.
-Fourth ventricle is normal in size and is midline in position.


OPINION:

Picture is suggestive of multiple brain parenchymal vascular lesions most probably cavernous angiomas.

For more details about the pathology

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