The following tests will be done by the doctor to diagnose desmoid tumors:

  • Physical exam. The doctor will perform an examination for any signs and symptoms.
  • Imaging tests. Imaging tests like Computed Tomography (CT) Scan and Magnetic Resonance Imaging (MRI) will be done in order to show images of the body part where the symptoms appear for further diagnosis.
  • Biopsy. A tissue sample of the tumor is removed through biopsy (using a needle or through surgery) and sent to the laboratory for testing. The pathologist will determine the type of cell present seriousness of the condition, as well as the diagnosis and treatment method.


  • Monitoring the growth of the tumor. The tumor will be monitored by the doctor if it does not manifest any symptoms through imaging tests performed once in every couple of months. The tumors may have the tendency to remain at the same size or shrink on their own without undergoing treatment.
  • Surgery. If the desmoid tumors are symptomatic, surgery may be indicated to remove them together with some parts of healthy tissues. They may also require surgery if the tumor has extensively grown invading other structures around, even if the removal is not complete.
  • Cryoablation. Uses very cold temperature to destroy desmoid tumors.
  • Radiation therapy. Uses a strong X-ray or proton beams to destroy the cancer cells. It is utilized if you are not eligible to undergo surgery, if surgery is a high risk or if there are cancer residue suspected after a surgery.
  • Chemotherapy. Chemotherapy uses specific medications to destroy tumors. It may also be used if surgery is not an option or if the desmoid tumor is rapidly growing.
  • Other medications. Anti-inflammatory medications, hormone therapy, and targeted therapy also utilize medications which may be helpful to treat desmoid tumors.