By Jasmine Allday Emmerdale will air some devastating scenes next week – as one resident gets a heartbreaking diagnosis. Next week on the ITV soap, Dawn panics when she spots a bruise on Evan’s leg. When she telephones the surgery, Dr Liam tells her she needs to take him to A&E immediately, where a paediatrician examines him and decides to take some blood tests. Anxious that they will be accused of hurting their son, Billy and Dawn are left worried. In heartbreaking scenes, Dawn and Billy will be told their son is very sick and having seen the blood results, the paediatrician decides they need…