Reviewed by Laurence P. Banville, Esq.What the four types of mesothelioma are
Mesothelioma is a cancer of the mesothelium, the thin lining that surrounds many of the body’s internal organs. Doctors classify it by the part of that lining where the tumor forms:
- Pleural mesothelioma develops in the lining of the lungs and chest wall. It is the most common form, accounting for roughly three out of four cases, and typically causes chest pain, shortness of breath, and a persistent cough.
- Peritoneal mesothelioma forms in the lining of the abdomen. It is the second most common type and often shows up as abdominal swelling, pain, and unexplained weight loss.
- Pericardial mesothelioma arises in the lining around the heart. It is rare and can cause chest pain, irregular heartbeat, and difficulty breathing.
- Testicular mesothelioma develops in the lining surrounding the testes. It is the rarest form, usually found as a painless mass.
Pathologists also describe mesothelioma by its cell type: epithelioid (the most common and generally most treatable), sarcomatoid (more aggressive), and biphasic (a mix of both). The cell type matters because it influences treatment options and prognosis.
What causes each type
The common thread across all four types is asbestos. When asbestos fibers are inhaled or swallowed, they can lodge in the body’s linings and trigger the cellular damage that leads to mesothelioma decades later. Pleural mesothelioma is generally tied to inhaling airborne fibers, while peritoneal mesothelioma is associated with swallowing fibers or with fibers migrating through the body. Because symptoms often appear 20 to 50 years after exposure, many people are diagnosed long after they left the job or environment where they were exposed.
Who can be held liable in New York
In New York, the parties responsible for asbestos exposure are usually the manufacturers of asbestos-containing products and, in some cases, the property owners or employers who allowed unsafe conditions. Construction and industrial workers, shipyard and Navy veterans, factory and power-plant workers, insulators, and people exposed secondhand through a family member’s work clothes are among those most affected.
Where exposure happened on a construction site, New York’s labor laws can come into play, including the general duty to provide a safe workplace Labor Law §200 and construction-safety obligations Labor Law §241(6). Most asbestos cases, however, are product-liability and negligence claims against the companies that made or sold the products.
How the value of a claim is determined
No two mesothelioma cases are worth the same amount, and anyone who promises you a specific figure should be treated with caution. Outcomes vary, and prior results never guarantee future ones. What a credible evaluation looks at includes:
- The type and stage of mesothelioma and the related medical treatment.
- Documented medical bills, lost wages, and future care needs.
- Pain, suffering, and the impact on your daily life and family.
- The strength of the evidence connecting your illness to specific asbestos products and exposure sites.
- Whether a bankruptcy trust, a lawsuit, or both are available avenues for recovery.
Deadlines you cannot miss in New York
New York’s deadline for filing a personal injury lawsuit is generally three years CPLR §214-c. For mesothelioma, the clock typically starts at diagnosis rather than at the time of exposure, which is critical given the disease’s long latency. If a loved one has died from mesothelioma, a wrongful death action generally must be brought within two years EPTL §5-4.1. Because the exact start date can be disputed, it is wise to confirm your specific deadline early rather than assume you have time.
Common scenarios we see
Typical situations include a retired tradesperson diagnosed with pleural mesothelioma decades after working around insulation, a spouse who developed peritoneal mesothelioma after laundering asbestos-laden work clothes, and a veteran exposed aboard ship. In each case, the path forward depends on identifying the products and worksites involved and preserving evidence quickly.
What to do next
If you or a family member has been diagnosed, focus first on treatment and then on documenting your work and exposure history, including job sites, employers, dates, and any products you remember. Keep your medical records organized. Speaking with a personal injury attorney who handles asbestos matters helps you understand your options and protect your deadline before it passes.
Frequently asked questions
What is the most common type of mesothelioma?
Pleural mesothelioma, which forms in the lining of the lungs and chest, is the most common type and accounts for roughly three out of four cases. It is most often linked to inhaling airborne asbestos fibers and typically causes chest pain, coughing, and shortness of breath.
Are all types of mesothelioma caused by asbestos?
Asbestos exposure is the primary cause of all four types of mesothelioma. Fibers that are inhaled or swallowed can lodge in the body's linings and trigger cancer decades later, which is why many people are diagnosed long after their exposure.
How long after asbestos exposure does mesothelioma appear?
Mesothelioma usually has a long latency period, with symptoms often appearing 20 to 50 years after exposure. Because of this delay, a diagnosis can come decades after someone left the job or setting where they were exposed.
What is the difference between epithelioid, sarcomatoid, and biphasic mesothelioma?
These terms describe the cell type rather than the location. Epithelioid is the most common and generally most treatable, sarcomatoid tends to be more aggressive, and biphasic is a mix of both. Cell type helps doctors plan treatment and assess prognosis.
How long do I have to file a mesothelioma claim in New York?
New York generally allows three years from the date of diagnosis to file a personal injury lawsuit, and two years for a wrongful death action after a loved one's passing. Because the exact start date can be disputed, it is best to confirm your specific deadline early.