Margerey (J Path Bact 1949; 61:203-208) studied 250 mitral valves and postulated that the mechanism of formation is intimal damage due to mechanical trauma at the leaflet coaptation. The damaged area is covered by fibrin, which subsequently becomes uplifted, or partially detached from the valve surface.
Irving, TX Current Weather and Forecast. Irving, TX Weather Forecast. 3:20 PM CDT SAT APR 15 2017. TONIGHT - Partly cloudy this evening - then becoming mostly cloudy. Lows in the mid 60s. South winds 5 to 10 mph.
Homefacts City Report. Irving is located in Dallas County, TX. The population is 225,427, making Irving the 3rd largest city in Dallas County. There are 52 public schools in Irving with an average Homefacts rating of C+. The total crime rate for Irving is moderate, and there are 229 registered sex offenders residing in the city.