My dad's case is in Harrisburg and I've been pulling together everything for the claim. It's been... a lot. Not just emotionally but like, figuring out what actually matters legally versus what's just noise.
So from what our attorney explained and what I've learned managing his medical stuff, you need exposure history first. That's the foundation. Where did he work, what years, what products or materials was he around. For my dad it was insulation work in the 70s and 80s at a couple different sites around central PA. We had to dig through old employment records, talk to coworkers he still remembered, pull tax returns. It's tedious but it matters.
Then you need the actual diagnosis. Pathology report from the biopsy is critical. Not just a CT scan saying "suspicious for meso" but the tissue diagnosis. We have my dad's from when they did the thoracentesis and sent it to pathology. That report with the specific cell type and everything is what proves he actually has it.
Medical records documenting the progression help too. All his imaging, all his office visit notes, anything showing timeline and how it's affected him. I've been keeping detailed notes as his nurse practitioner daughter but the official records from his oncology team at Penn State Health here in Harrisburg are what the claim really needs.
Then there's the exposure connection. This is where it gets complicated because meso has such a long latency period. You need to show he was exposed to asbestos during his work, that the company or manufacturer knew about the hazard, and that they didn't protect him. Sometimes that's old OSHA reports, sometimes it's product literature from back then, sometimes it's testimony from other workers.
Our attorney also wanted documentation of any previous exposures we could rule out or clarify, military service records if applicable, medical history showing no other cause. For my dad we had to be clear about his non-smoking status and no other occupational exposures that could have caused this.
It's honestly overwhelming to gather but your attorney should have a checklist. Don't just assume you have everything. I made the mistake of thinking old employment records were enough and we had to go back for more detail. The specificity matters.