This is known as Breast Implant-Associated Anaplastic Large Cell Lymphoma (BIA-ALCL). Overall the risk of BI-ALCL is extremely low and you should not be in any way alarmed.
The risk of BIA-ALCL is one that Mr Stone has warned his patients about since it first became known. For the past ten years or so, Mr Stone has used Nagor implants. Although cases of BIA-ALCL have been reported with these implants, they have not been as numerous as in patients with other types of implant.