Orthopedic assessment was made with benign findings on biopsy by the surgeon.

His letter states:

" The diagnosis is one of periacetabular lysis, without there being any evidence of malignancy. As such I have recommended to the patient that we simply keep an eye on things. There is no loosening of his cup that requires any surgical intervention for now. The progression of the radiolucency has been quite slow and it is out of the weight-bearing portion of the acetabular component. We would like to keep an eye on it just to make sure that it is not progressing rapidly. As I mentioned in my previous letter, should the lysis increase to where failure of the cup is likely, then it is often better to intervene beforehand. I have recommended review in a year's time when he will have another set of x-rays taken ".