Microsimulation model of CT versus MRI surveillance of Bosniak IIF renal cystic lesions: should effects of radiation exposure affect selection of imaging strategy?
Microsimulation modeling shows that radiation-induced cancer risks from CT surveillance for Bosniak IIF lesions minimally affect life expectancy. However, as progressively younger patients are considered, increasing radiation risks merit stronger consideration of MRI surveillance.
Abnormal methionine challenge test results cannot be explained by a deficiency in pyridoxal phosphate, folic acid, or cobalamin. We demonstrate that, when women are tested 3 months postpartum, the methionine challenge test is reliable for demonstrating hyperhomocysteinemia as a risk factor for vascular-related complications of pregnancy.