Mesothelioma - benign-fibrous

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Benign mesothelioma is a noncancerous tumor of the lining of the lung and chest cavity, an area called the pleura.

It is also called solitary fibrous tumor of the pleura.

See also: Malignant mesothelioma

Alternative Names

Mesothelioma - benign; Mesothelioma - fibrous; Pleural fibroma; Solitary fibrous tumor of the pleura


This type of tumor more often affects men than women.


About half of the people with this type of tumor do not show any symptoms.

If the tumor grows to a large size and pushes on the lung, it can lead to symptoms, such as:

Exams and Tests

During a physical examination, the health care provider may notice a clubbed appearance of the fingers. The tumor is usually found by accident when a chest x-ray is done for other reasons.

Other tests that may show benign mesothelioma include:


Treatment is usually to remove the tumor.

Outlook (Prognosis)

The outcome is expected to be good with prompt treatment. The condition may return in about 1 out of 10 cases. It may return up to 10 years later.

Possible Complications

Fluid escaping into the membranes around the lungs (pleural effusion) is a complication.

When to Contact a Medical Professional

Call for an appointment with your health care provider if you notice symptoms of mesothelioma.


Broaddus VC, Robinson BWS. Tumors of the pleura. In: Mason RJ, Broaddus VC, Martin TR, et al, eds. Murray and Nadel'sTextbook of Respiratory Medicine. 5th ed. Philadelphia, PA: Elsevier Saunders; 2010:chap 75.

Celli BR. Diseases of the diaphragm, chest wall, pleura, and mediastinum. In: Goldman L, Schafer AI, eds. Goldman's Cecil Medicine. 24th ed. Philadelphia, PA: Elsevier Saunders; 2011:chap 99.

Version Info

  • Last reviewed on 8/25/2014
  • Denis Hadjiliadis, MD, Associate Professor of Medicine, Allergy, and Critical Care, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA. Also reviewed by David Zieve, MD, MHA, Isla Ogilvie, PhD, and the A.D.A.M. Editorial team.

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