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Mesothelioma
Reviewed by Medicinsk Expert•Last updated: 2026-10-22•Lungs Breathing

Mesothelioma

Mesothelioma is a rare but serious cancer of the mesothelium, often linked to asbestos exposure and typically presenting with breathing difficulties, cough, and abdominal pain.

Overview

The tissue that lines your lungs, stomach, heart, and other organs is called mesothelium. Mesothelioma, also known as malignant mesothelioma, is cancer of that tissue. It usually starts in the lungs, but can also start in the abdomen or other organs.

Malignant mesothelioma is rare but serious. Most people who get it have worked or lived in places where they inhaled or swallowed asbestos particles. After being exposed to asbestos, it usually takes a long time for the disease to form.

Symptoms

  • Trouble breathing
  • Cough
  • Pain under the rib cage
  • Pain, swelling, or lumps in the abdomen
  • Weight loss for no known reason
  • Blood clots
  • Constipation
  • Fatigue

Diagnosis

Sometimes it is hard to tell the difference between malignant mesothelioma and lung cancer. To find out if you have mesothelioma, your health care provider will likely use a physical exam, imaging tests, and a biopsy.

Treatment & Management

Malignant mesothelioma is often found when it is advanced. This makes it harder to treat. Treatment options may include:

  • Surgery
  • Radiation therapy
  • Chemotherapy
  • Immunotherapy
  • Targeted therapy, which uses drugs or other substances that attack specific cancer cells with less harm to normal cells

Frequently Asked Questions

Mesothelioma usually appears 20 to 50 years after significant asbestos exposure. Because the disease is rare and early symptoms are nonspecific, routine screening is not recommended for the general population. High‑risk individuals (e.g., former asbestos workers) may undergo periodic chest X‑rays or low‑dose CT scans, but these are mainly for monitoring known pleural abnormalities rather than detecting cancer before it appears. A definitive diagnosis still requires imaging plus a biopsy of suspicious tissue or pleural fluid. How do treatment strategies differ between pleural (lung lining) and peritoneal (abdominal lining) mesothelioma?::Pleural mesothelioma is often treated with a combination of surgery (extrapleural pneumonectomy or pleurectomy‑decortication), chemotherapy, and sometimes radiation or immunotherapy. Peritoneal mesothelioma is usually managed with cytoreductive surgery to remove visible tumors followed by heated intraperitoneal chemotherapy (HIPEC). The choice depends on tumor stage, patient fitness, and whether the disease is localized or has spread. Can I continue working or traveling after a mesothelioma diagnosis, and what precautions should I take?::Many patients can resume normal activities once they are medically cleared, but the extent depends on treatment phase and side effects. During active chemotherapy or post‑surgery recovery, you may need to avoid heavy lifting, high‑altitude travel, or environments with low oxygen levels. Discuss your specific work or travel plans with your oncologist to tailor safety measures. What clinical trials or emerging therapies are available for mesothelioma patients?::Current trials explore immune checkpoint inhibitors (e.g., pembrolizumab), combination chemo‑immunotherapy, targeted agents against mesothelin or VEGF, and gene‑editing approaches. Patients can find trials through clinicaltrials.gov, the National Cancer Institute, or by asking their treating oncologist about eligibility and enrollment procedures.
Source: MedlinePlus, National Library of Medicine

MedlinePlus brings together authoritative health information from the National Library of Medicine (NLM), the National Institutes of Health (NIH), and other government agencies and health-related organizations.

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