TY - JOUR T1 - Thin-section CT of midbrain abnormalities in progressive supranuclear palsy. JF - American Journal of Neuroradiology JO - Am. J. Neuroradiol. SP - 767 LP - 772 VL - 6 IS - 5 AU - E F Masucci AU - F T Borts AU - J G Smirniotopoulos AU - J F Kurtzke AU - D Schellinger Y1 - 1985/09/01 UR - http://www.ajnr.org/content/6/5/767.abstract N2 - Thin-section computed tomographic (CT) scans of 3 and 1.5 mm thickness were obtained using the Philips Tomoscan 310 and General Electric 8800 CT/T scanners in the study of 10 consecutive patients with progressive supranuclear palsy (PSP) and 31 patients with other diseases. Marked midbrain and moderate pontine atrophy, a dilated third ventricle, and enlarged quadrigeminal plate cisterns were observed in all PSP cases. The aqueduct was dilated in several. In six of the PSP cases, there was a striking midbrain abnormality in the form of a low-density area extending from the interpeduncular cistern toward the aqueduct. Thin-section metrizamide-enhanced cisternography of three of the six PSP cases showed that the low-density abnormality was the result of the interpeduncular cistern invaginating the atrophic midbrain. ER -