Not much is known about Lanie's past, other than the fact that Lanie did her residency at Saint Samuel's Hospital, under Toby Lang. Also, Lanie wanted to be a prima ballerina as a child, before "the girls" (her breasts) showed up when she was thirteen. ("A Dance With Death") Also, according to Esposito, she hates her mother and probably does not see her often. ("Setup")