The Texas Attorney General’s Office has asked the state supreme court to dismiss a lawsuit over a surgical sponge discovered in a patient more than 10 years after surgery. In a brief submitted Tuesday, the state solicitor general urged the high court to uphold a 10-year statute of limitations on filing medical malpractice cases. The plaintiff underwent a hysterectomy in 1995. A sponge from that procedure was discovered in her abdomen just over a decade later.