PT - JOURNAL ARTICLE AU - Steven C. Cramer AU - Keith C. Stegbauer AU - Alex Schneider AU - John Mukai AU - Kenneth R. Maravilla TI - Decreased Diffusion in Central Pontine Myelinolysis DP - 2001 Sep 01 TA - American Journal of Neuroradiology PG - 1476--1479 VI - 22 IP - 8 4099 - http://www.ajnr.org/content/22/8/1476.short 4100 - http://www.ajnr.org/content/22/8/1476.full SO - Am. J. Neuroradiol.2001 Sep 01; 22 AB - Summary: Two patients with central pontine myelinolysis (CPM) were studied with diffusion-weighted MR imaging 1 week after onset of tetraplegia. In both patients, affected white matter showed hyperintensity on diffusion-weighted images associated with a decrease in apparent diffusion coefficient (ADC) values. In one patient studied serially, ADC values normalized by 3 weeks after tetraplegia. Early in the clinical course, diagnosis of CPM can sometimes be difficult. Hyperintensity on diffusion-weighted images may therefore have diagnostic utility. Decreased lesional ADC values support the notion that CPM is a consequence of relative intracellular hypotonicity.