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Ectopic Posterior Pituitary Lobe and Cortical Dysplasia

Jill C. Bergsona, Vikram K. Garga and Jakwei Changa

a SUNY Upstate Medical University
Syracuse
NY


Figure 1
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  		Fig 1. A, Sagittal T1-weighted image shows a hyperintensity corresponding to an ectopic posterior pituitary lobe located in the hypothalamic area. The pituitary is small.

B, Paramedian sagittal T1-weighted image reveals a thin optic chiasm and a small pituitary.


Figure 2
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  		Fig 2. A, Axial T2-weighted image reveals thickening of the cortical gray matter at the medial aspect of both frontal lobes, compatible with bifrontal cortical dysplasia (short arrows). Also seen is a strip of ectopic gray matter extending from the head of the right caudate nuclei to the orbitofrontal cortex (long arrow).

B, Coronal FLAIR image shows a strip of ectopic gray matter extending from the head of the right caudate nuclei to the orbitofrontal cortex (long arrow) as well as bifrontal thickening of the cortical gray matter (short arrows).





Copyright © 2009 by the American Society of Neuroradiology. Print ISSN: 0195-6108 Online ISSN: 1936-959X