HOUSTON - A Texas appellate panel on April 18 dismissed medical malpractice claims against a radiologist, ruling that the plaintiff's expert failed to show that the defendant's negligence caused a woman's personal injuries (Sam Lo, M.D., et al. v. Rita Gonzales, No. 01-12-00987-CV, Texas App., 1st Dist.; 2013 Tex. App. LEXIS 4820).