What is desmoid tumor?
Desmoid tumors are also known as aggressive fibromatosis or desmoid-type fibromatosis. A desmoid tumor can occur anywhere in the body since connective tissue is found everywhere in your body. Desmoid tumors are often found in the abdomen, as well as the shoulders, upper arms, and thighs.
Is desmoid tumor a sarcoma?
Desmoid tumors are a type of soft-tissue tumor that come from fibrous tissue. They are related to connective tissue cancers called sarcomas, but desmoid tumors are not cancers because they do not spread to other parts of the body.
What is desmoid fibromatosis?
A desmoid tumor is a specific type of fibrous growth that occurs in the body. These tumors frequently begin in the arms, legs, or torso. Doctors often refer to them as desmoid-type fibromatosis. Another name for a desmoid tumor is deep fibromatosis. Desmoids are related to a group of cancers called soft tissue sarcoma.
How rare is a desmoid tumor?
Desmoid tumors are rare, making up less than 3% of all soft-tissue tumors. Each year, approximately 900 to 1,500 people in the United States will be diagnosed with a desmoid tumor. This type of tumor mostly affects people between the ages of 15 and 60 years, but it can occur at any age.
How do desmoid tumors form?
Doctors know these tumors form when a connective tissue cell develops changes in its DNA. A cell’s DNA contains the instructions that tell a cell what to do. The changes tell the connective tissue cell to multiply rapidly, creating a mass of cells (tumor) that can invade and destroy healthy body tissue.
What is considered a large desmoid tumor?
Sometimes, the lump is painful. Most lumps are not a desmoid tumor. However, it is important to talk with your doctor about any lumps that are larger than 2 inches (5 centimeters), grow larger, or are painful, regardless of their location.
What is Dermatofibrosarcoma?
Dermatofibrosarcoma protuberans (DFSP) is a very rare type of skin cancer that begins in connective tissue cells in the middle layer of your skin (dermis). Dermatofibrosarcoma protuberans may at first appear as a bruise or scar. As it grows, lumps of tissue (protuberans) may form near the surface of the skin.
How do you shrink a desmoid tumor?
Chemotherapy may be used to shrink an aggressive, organ-threatening desmoid tumor or one that is causing symptoms.
WHO classification desmoid tumors?
Therefore, DF has now been classified as “intermediate, locally aggressive” tumor in the WHO classification of soft tissue tumors. In the past, DF was typically managed with surgical resection.
Are desmoid tumors genetic?
Most desmoid tumors are sporadic and are not inherited. Sporadic tumors result from gene mutations that occur during a person’s lifetime, called somatic mutations. A somatic mutation in one copy of the gene is sufficient to cause the disorder.
Can a mass shrink on its own?
Tumours have been known to disappear spontaneously, in the absence of any targeted treatment, usually after an infection (bacterial, viral, fungal or even protozoal).
Can you have multiple desmoid tumors?
A desmoid tumor is an abnormal growth that arises from connective tissue , which is the tissue that provides strength and flexibility to structures such as bones, ligaments, and muscles. Typically, a single tumor develops, although some people have multiple tumors. The tumors can occur anywhere in the body.
What are desmoid tumors?
Desmoid tumors are often found in the abdomen, as well as the shoulders, upper arms, and thighs. Desmoid tumors are benign, which means they are not cancer.
What is the aim of individualized therapy for desmoid tumors?
The aim of individualized therapy is to identify methods to predict the biological behavior for each individual patient. Identification of tumors with a higher risk for local recurrence after excision will be the subject of further research. Specific β-catenin gene mutations have been found to correlate with local recurrence in sporadic desmoids.
How is desmoid sarcoma treated?
Patients with desmoids should be managed by a multidisciplinary team with expertise in sarcoma treatment. Shared decision making with the patient is of major importance. Treatment of desmoid tumors should be surgery whenever a complete resection with negative margins and preservation of function are possible.
What is the prevalence of desmoids in the US?
Desmoids are therefore a distinct rare tumor entity and are seen in about three to four cases per 1 million of the U.S. population. Desmoids occur between the age of 15 and 60 years, but particularly during early adolescence, and with a peak age of about 30 years.