Skip to main content
Content Medically Reviewed & Updated: April 19, 2026 Call 24/7: 1-800-400-1805
1-800-400-1805 Free Case Review
Sign In Join Free

how long between exposure and actually getting diagnosed with meso

Caregiver · · 77 views
So my dad was exposed to asbestos back in the late 70s when he worked at a manufacturing plant in St. Paul, and he didn't get diagnosed until last month. That's over 40 years. I'm trying to understand the timeline because it's making me angry that he had no idea this was coming and now we're dealing with Stage III.

From what I've read the latency period is usually 20 to 50 years but I'm seeing some cases where it's shorter and some where it's way longer. His oncologist said it depends on the amount of exposure and how much fiber he inhaled and honestly that doesn't really help me understand what we should have been watching for.

Did anyone else have a long gap between exposure and diagnosis? I'm trying to figure out if there were warning signs we missed or if this is just how the disease works and there's nothing you can do about it anyway.

Also trying to get a timeline together for his settlement claim so if anyone knows how this affects the legal side of things let me know.

8 Replies

Family
Joe got exposed way back in the 70s too, working construction in Tampa, and we didn't find out until September of this year. So I get that anger, I really do. It's like this invisible thing just sitting there for decades and then boom, suddenly it's your whole life.

The latency thing is so frustrating because yeah, 20 to 50 years is what they say but your dad's timeline is actually pretty common. Forty years isn't even unusual. What I've learned from our oncologist is that mesothelioma just doesn't give you those early warning signs the way other cancers might. There's no cough or chest pain that showed up in year five that we could've caught. It's silent until it's not, and that's the hardest part to accept honestly.

Joe started immunotherapy back in November and we've learned so much more since his Stage III diagnosis. The oncologist explained that the latency depends on fiber size, how deep it got into the lungs, and yeah, the amount of exposure, but here's the thing nobody can really predict it. Some people get it in 15 years and some in 50. It's not about what warning signs you missed because there usually aren't any until it's advanced. That's not your fault and it's not your dad's fault either.

For the timeline stuff with his claim, the exposure date from the late 70s is what matters most. That's the anchor point. We're gathering all of Joe's employment records from back then which has been like detective work honestly but the legal side does care about when and where the exposure happened.

How's your dad feeling with his treatment plan so far?
Family
Joe was exposed back in 1989 during a renovation job, and we didn't get his diagnosis until September of this year. That's 36 years. So yeah, I totally get the anger you're feeling right now because it hits different when you realize the timeline.

The latency thing is real and it's frustrating because there's no way to know. His oncologist said the same thing yours is saying about fiber amount and all that, and honestly it doesn't change anything now so I stopped trying to make sense of it. Teaching for 40 years taught me that some things just don't have satisfying answers and you have to sit with that.

As far as warning signs, Joe had a persistent cough for maybe 8 months before we pushed for imaging. We thought it was just getting older, maybe some asthma thing developing. Fatigue too but again, who isn't tired? The thing is even if we'd caught it earlier I'm not sure it would've changed much for Stage III. The disease doesn't really telegraph itself until it's already pretty far along.

For the timeline and settlement stuff, definitely get a lawyer involved because they'll know exactly what documentation you need from that manufacturing plant job back in the 70s. The exposure date matters legally but I can't really advise on that side. What I can tell you is don't blame yourself or your dad for not knowing. This disease is sneaky and 40 years is a long time to carry something invisible.

How is your dad doing with the diagnosis emotionally? Sometimes the anger fades a bit once treatment starts and there's something to actually do.
Family
My dad was exposed in the early 80s at a steel fabrication shop in the northwest suburbs, diagnosed in March of this year. So yeah, 40+ years for him too. I get the anger. I really do. That feeling of "why didn't we catch this sooner" is something I've had to work through myself.

The latency thing is frustrating because it's not just about total fiber load. It's also about fiber type (chrysotile vs amphibole makes a huge difference in how aggressively it progresses), particle size, individual lung clearance capacity, smoking history, genetics. I use these terms at work all the time but applying it to my own dad... it doesn't make the uncertainty easier to live with. His oncologist is right that it depends on exposure amount but that's almost useless information when you weren't there measuring it 40 years ago.

As for warning signs, there usually aren't any until it's pretty advanced. Mesothelioma is sneaky that way. By the time people develop symptoms (persistent cough, chest pain, shortness of breath) the disease has often already progressed significantly. My dad had a nagging dry cough for maybe 6 months before his imaging showed the pleural thickening. He blamed it on allergies. I blamed it on allergies. We'd have blamed it on anything other than what it actually was.

One thing that helped us was getting a chest CT from a radiologist who specializes in occupational lung disease. Different from his regular oncology imaging. Caught details earlier than the standard reports. If your dad hasn't had that specifically, might be worth asking about.

For the settlement timeline they'll want exact employment dates, names of supervisors, any coworkers you can identify. We're still gathering that stuff. It's tedious but apparently matters more than you'd think.
Patient
Yeah man, 40 years sounds about right. I got exposed mostly in the 70s and 80s doing brake jobs, some asbestos in insulation when I renovated the basement in '92, and didn't get the diagnosis till December of last year. So we're talking like 45 years for me. Your dad's not alone in that timeline.

The thing that gets me is there really weren't warning signs, at least not ones that screamed "hey you got asbestos in your lungs." I was fine for decades. Then I started getting shortness of breath last summer, thought it was just getting old and outta shape. Went to my regular doc in October, got some chest X-rays, and that's when they saw the scarring. By the time they did the CT scan in early December the pleural thickening was pretty obvious. So I went from feeling mostly normal to having a diagnosis in like 8 weeks.

I had the EPP surgery back in February and honestly the recovery's been better than I expected. Not gonna lie though, finding out I coulda been sick for years without knowing it... that part messed with me. But dwelling on what you didn't catch doesn't help your dad right now. Stage III is serious but people get through it.

For the timeline stuff on the legal side, having dates on when he worked there, what exactly he was doing, and when his symptoms actually started showing up matters more than people realize. I'm still gathering paperwork from old employers and it's a pain. Get everything documented though because that stuff adds up.

How's your dad doing with the diagnosis itself? That's the real battle right now.
Medical ✓ Expert Response
The 40-50 year latency you're describing is textbook for pleural mesothelioma. The Surveillance, Epidemiology, and End Results data puts the median latency at around 44 years, so your dad's timeline is actually one of the more common presentations we see, even though that probably doesn't make it feel any less unfair.

On the warning signs question, this is honestly one of the hardest parts to explain to families. The early symptoms, shortness of breath, a dull chest ache, sometimes just fatigue, are so nonspecific that even if someone had been watching closely, they likely would have attributed it to aging or something cardiac. By the time imaging would have caught anything definitive, most patients are already Stage II or III. So no, you almost certainly didn't miss something obvious.

Stage III is still treatable. The KEYNOTE-483 trial published some encouraging data on immunotherapy combinations for unresectable disease, and that's very much an active conversation in oncology right now. Talk to his oncologist specifically about whether he's a candidate for a clinical trial or combination therapy.

One thing I'd mention for the legal documentation piece, the treating physician's records from the first appointment are often more useful than people realize for establishing onset timeline. We had a patient at our clinic in 2021 where those initial intake notes ended up being pretty significant in establishing the exposure-to-diagnosis window.
4 found this helpful
Medical ✓ Expert Response
The anger you're describing makes complete sense, and honestly a lot of families I work with get stuck on the "what did we miss" question for a long time. But here's something that might actually help you sit with this a little easier: pleural meso often presents with symptoms that look exactly like other things. Persistent cough, shortness of breath, maybe some chest tightness. In my 12 years doing this work I've seen families go back through years of medical records and find that those symptoms were treated as bronchitis, allergies, just "getting older." There genuinely wasn't a moment where someone dropped the ball.

On the documentation side, since you mentioned the settlement claim, I'd start a detailed timeline now even if it feels incomplete. The plant location in St. Paul, the years he worked there, any coworkers he's still in touch with who can corroborate the exposure. That kind of specific detail matters more than people realize and gathering it early while memories are fresh has helped a lot of families I've supported.

If the "what should we have known" spiral keeps coming back, journaling through it can actually move that feeling somewhere. You can't think your way out of grief but sometimes writing it helps it stop looping.
3 found this helpful
Medical ✓ Expert Response
On the "warning signs we missed" question, that guilt is so understandable but the biology really does work against early detection here. Mesothelioma grows along the pleural lining (the tissue surrounding the lung) for years before it causes enough pressure or fluid buildup to produce noticeable symptoms. By the time someone feels the chest heaviness or shortness of breath that typically brings them in, it's usually already regional or advanced. The MESO-RILA screening trial out of Europe has been looking at whether low-dose CT surveillance for high-exposure workers catches it earlier, and the preliminary data is... complicated. Not yet standard of care in the US.

So no, there almost certainly weren't signs you missed. That's just how this particular cancer behaves and I say that not to dismiss the anger but because I've watched families carry that guilt and it's an unfair weight.

Talk to his oncologist about where Stage III sits in terms of treatment options because that staging conversation matters a lot right now.
3 found this helpful
Medical ✓ Expert Response
On the "what should we have been watching for" question, I want to address something your dad's oncologist probably didn't have time to explain fully. The frustrating reality is that pleural mesothelioma (cancer of the lining around the lungs) is almost always asymptomatic until it's locally advanced. The Butchart staging data published in the early 2000s showed that most patients have 4 to 12 months of vague symptoms before diagnosis, things like mild shortness of breath or a dull ache that gets written off as aging or reflux. So the warning signs weren't missed, they genuinely weren't there to catch until recently.

Stage III is hard news but please talk to his oncologist specifically about trimodality therapy eligibility and whether his team has mesothelioma volume. We had a patient get a second opinion at a dedicated thoracic oncology center in March 2024 and the treatment plan changed completely.
3 found this helpful

Share Your Experience

Sign in or create a free account to share your experience.

Sign In Create Account

Discussions in this community are for informational and emotional support purposes only. They do not constitute legal advice, medical advice, or an attorney-client relationship. Always consult a qualified professional for advice specific to your situation. Community Guidelines

Call Now: (800) 400-1805 Free Case Review • Available 24/7