ARTICLE WRITTEN FOR FOLLOWERS OF THE BRITISH SOAP OPERA EXPLAINING THE DIAGNOSIS OF MITOCHONDRIAL DISEASE FOR ONE OF ITS CHARACTERS, OLIVER: Leanne gets the diagnosis about her son in tonight’s upsetting episode (Picture: ITV) There are sad scenes ahead in Coronation Street tonight as Leanne Tilsley ( Jane Danson ) and Steve McDonald (Simon Gregson) are left to console each other as their son, Oliver, is diagnosed with an incurable […]