LIVING ART ENTERPRISES, LLC / SCIENCE PHOTO LIBRARY LIVING ART ENTERPRISES, LLC / SCIENCE PHOTO LIBRARY
This axial (cross section) MRI image of the brain near the top of the head shows a lesion typical of a cavernous malformation. This is located in the primary motor strip (precentral gyrus) and caused seizures. Cavernous malformations are benign low flow vascular malformations which consist of dilated capillaries with no intervening normal brain.; They can expand and cause a variety of symptoms including seizures as in this case.; MRI can be very sensitive to detecting these lesions when gradient echo T2 images are used due to their high sensitivity to magnetic susceptibility.
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