52.2 MB (3.2 MB compressed)
4200 x 4346 pixels
35.6 x 36.8 cm ⏐ 14.0 x 14.5 in (300dpi)
LIVING ART ENTERPRISES, LLC / SCIENCE SOURCE / SCIENCE PHOTO LIBRARY LIVING ART ENTERPRISES, LLC / SCIENCE SOURCE / SCIENCE PHOTO LIBRARY
This sagittal (from the side) T1 weighted MR image without contrast shows a hypointense mass like region in the prepontine cistern with compression of the brainstem. This represents an epidermoid tumour/cyst which is a congenital lesion consisting of keratinized epithelium with desquamation. These expand/grow over time. This is the same as a congenital cholesteatoma.
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