Benign Mesothelioma: Signs and Treatment


Mesothelioma is a rare and serious type of cancer that usually affects the lining of the lungs, but can also affect other organs such as the abdomen or heart. However, not all mesothelioma cases are malignant, as there is a benign form of mesothelioma that is less severe. Benign mesothelioma is still a relatively unknown condition, but it is important to be aware of the signs and treatment options in case you or someone you know may be affected.

What is Benign Mesothelioma?

Benign mesothelioma, also known as solitary fibrous tumor (SFT), is a non-cancerous tumor that arises from the mesothelial cells that line the body's internal organs. It can occur in various parts of the body, including the pleura, peritoneum, and pericardium. Unlike malignant mesothelioma, which can spread rapidly and aggressively, benign mesothelioma is typically slow-growing and non-invasive. However, it can still cause serious symptoms and complications depending on the location and size of the tumor.

Signs and Symptoms

The signs and symptoms of benign mesothelioma vary depending on the location of the tumor. In some cases, there may be no symptoms at all and the tumor is discovered incidentally during routine imaging studies. However, when symptoms do occur, they can include:
  • Chest pain or discomfort (if the tumor is located in the pleura)
  • Abdominal pain or swelling (if the tumor is in the peritoneum)
  • Difficulty breathing or shortness of breath
  • Fatigue or weakness
  • Fever or night sweats
It is important to note that these symptoms can also be caused by a variety of other conditions, so it is important to seek medical attention if you are experiencing any of these symptoms.


Diagnosing benign mesothelioma can be challenging, as it often presents with nonspecific symptoms that can be mistaken for other conditions. Additionally, imaging studies such as X-rays or CT scans may not always be sufficient for making a definitive diagnosis. If your doctor suspects that you may have benign mesothelioma, they will likely order further testing such as a biopsy, in which a sample of tissue is taken from the tumor and analyzed under a microscope.


The treatment approach for benign mesothelioma depends primarily on the location and size of the tumor, as well as the severity of symptoms. In many cases, observation and monitoring are sufficient, particularly if the tumor is small and not causing significant symptoms. If the tumor is larger or causing symptoms such as pain or difficulty breathing, surgery may be necessary to remove the tumor. In some cases, radiation therapy or chemotherapy may also be used to shrink or eliminate the tumor.


While benign mesothelioma is certainly less severe than its malignant counterpart, it is still a serious condition that requires prompt medical attention. By being aware of the signs and symptoms of this condition, you can help ensure that you or someone you know receives the proper diagnosis and treatment. If you suspect that you may have a mesothelioma tumor, speak with your doctor as soon as possible to get a proper diagnosis and develop a treatment plan. With prompt and effective care, many people with benign mesothelioma are able to manage symptoms and live full, healthy lives.