UPPER MARLBORO, Md. (CN) - A man who was hurt in a car crash but was misidentified as a cancer patient claims security guards at Prince George's Hospital beat him up when he tried to leave the hospital to avoid chest surgery he didn't need - "to have a potentially cancerous mass removed from his chest." He adds that one guard repeatedly called him "bitch" as he roughed him up. Joseph Wheeler says a June 23 car accident put him in the hospital, which is owned by Dimensions Health Corporation. When he woke up hungry on June 24 and asked...