For ALCL, it's clear that if you combine pathology data with the breast implant registry, it would be easy to see exactly which breast implant was used. For instance, it's been considered that it's mostly a macrotextured issue, because an allergen was blamed for that. However, the Korea scandal in 2021 was actually that microtextured implants also can cause ALCL. That was the implant that was specifically made in Korea, but also the manufacturer was causing fault and did not have a really microtextured envelope originally from the technical files, which they should have done.
It's important to go back and see exactly which implant caused the ALCL.