The Chest Clinic
Pleural mesothelioma
What is mesothelioma?
Mesothelioma is a cancer of the lining around certain organs. Pleural mesothelioma affects the lining around the lungs. It is strongly linked to previous asbestos exposure, often many years earlier. It is different from lung cancer and is not contagious.
Symptoms and assessment
Symptoms may include persistent chest pain, breathlessness, cough, fatigue, loss of appetite and unexplained weight loss. Fluid can collect around the lung. These symptoms also occur in other conditions, so they do not establish the diagnosis. Tell your clinician about past jobs, building work and possible asbestos exposure, even if it happened decades ago.
How is it diagnosed?
Assessment usually includes chest imaging, often a contrast CT scan. Fluid may be sampled, but a negative fluid result does not reliably exclude mesothelioma. A tissue biopsy is usually needed when it is appropriate for your care. This may be obtained under imaging guidance or by thoracoscopy, which allows inspection of the pleura. Specialist pathology establishes the diagnosis and subtype. Further tests assess the extent of disease and help plan treatment.
Treatment and support
A specialist multidisciplinary team reviews the findings with you. Treatment depends on the type and extent of disease, your general health and your priorities. Options may include immunotherapy, chemotherapy, radiotherapy for selected symptoms and clinical trials. For eligible adults with untreated unresectable pleural mesothelioma, NICE recommends nivolumab with ipilimumab as one treatment option.
Support for pain, breathlessness, nutrition and wellbeing is part of care throughout. Recurrent fluid may be managed with drainage, pleurodesis or an indwelling catheter. Surgery is not suitable for most people and requires specialist discussion. Your team should explain expected benefits, side effects and alternatives.
Mesothelioma UK offers specialist nurse support and information for patients and families, including signposting for practical and financial questions.
When to seek urgent help
Report new or worsening symptoms promptly, including treatment side effects. Call 999 for severe breathing difficulty, collapse or sudden confusion. If receiving cancer treatment, follow your oncology team’s emergency instructions for fever or feeling acutely unwell.
Routine appointment contacts | About pleural effusion
Sources and further information
BTS: mesothelioma investigation guideline
NICE TA818: immunotherapy option
Mesothelioma UK: patient and family support
General information for adults; treatment is planned individually.