 [ Symptoms ] my 7 year old has been coughing for six weeks and her 5 day z pack did not work what will  she has dark under eye circles is losing weight and sometimes coughs until she vomits [ Disease ] in my opinion you should do a m ri as your case should have developed or changed sclerotic changes in the bone means there is a bone disorder causing slowing of bone formation at this area this is not a diagnosis… it is a sign so further new mri and xray is needed plus correlation with symptoms … thanks