Article Figures & Data
Figures
- Fig 1.
A 54-year-old woman with leukemia, changes in consciousness, and ataxia. FLAIR axial images (11,000/140/2 [TR/TE/NEX]). A, The prepositus hypoglossal nuclei show symmetric high-signal-intensity alterations (arrows). B, The medial vestibular nuclei show symmetric hyperintense lesions (arrows). C, Symmetric high-signal-intensity alterations in the facial nuclei (arrows) are detected. Subtle signal-intensity alterations in the abducens nuclei are seen (arrowheads). D, The tectum of the midbrain and the periaqueductal gray matter shows signal-intensity alterations (arrow). E, The mamillary bodies (arrows) show signal-intensity alterations. F, Note signal-intensity alterations (arrows) of the medial thalami and periventricular region of the third ventricle.
- Fig 2.
A 54-year-old woman with a history of food refusal had changes in consciousness. FLAIR coronal images (11,000/140/2 [TR/TE/NEX]). A, Signal-intensity alterations with different intensity patterns are seen in the thalami (arrows). Diffuse signal-intensity alterations of the frontal cortex (arrowheads) are present. B, Note signal-intensity alterations in the mamillary bodies (arrows), periventricular region of the third ventricle (empty arrows), and brain cortex (arrowheads).
- Fig 3.
A 47-year-old woman with a history of alcohol abuse presented with ataxia, changes in consciousness, and ocular abnormalities. A, FLAIR axial image (9000/114/1 [TR/TE/NEX]). No signal-intensity alteration are seen at the mamillary body level (arrows). B, T1-weighted axial image (551/14/2 [TR/TE/NEX]). Contrast enhancement is seen in the mamillary bodies (arrows).
Tables
Patient Group Thal (%) Periaq (%) Mam Bodies (%) Tectal Plate (%) CNN (%) Fvgm (%) Cer (%) DN (%) Vermis (%) AL 63 46 33 13 0 4 0 0 0 NA 94* 68 52 52* 32* 9 9 3 6 Note:—Thal indicates medial thalami and periventricular region of the third ventricle; Periaq, periaqueductal gray matter; Mam bodies, mamillary bodies; Fvgm, periventricular gray matter located anterior to the 4th ventricle; CNN, cranial nerve nuclei; Cer, cerebellum; DN, dentate nuclei.
* Indicates positive statistical association.
† Imaging sequences included long-TR and short-TE spin-echo sequences and contrast-enhanced short-TR images in multiple planes.
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