A desmoid tumor is an atypical mass that develops from the connective tissue responsible for providing support to muscles, ligaments, organs, and bones in the human body. Although not classified as cancerous, desmoid tumors are far from harmless and can pose significant health concerns. These tumors are relatively rare, affecting approximately one or two individuals out of every 500,000 people worldwide. Within the United States alone, medical professionals diagnose around 900 to 1,500 new cases of desmoid tumors each year.
Structure and Location
Desmoid tumors are typically found as a single growth, although it is possible for multiple tumors to develop. These tumors have the ability to form in various parts of the body, with the abdominal region being the most common location. More specifically, they tend to develop in the tissue along the abdominal wall. When desmoid tumors arise within the connective tissues between abdominal organs, they are referred to as intra-abdominal desmoid tumors. On the other hand, desmoid tumors found in any other part of the body are known as extra-abdominal tumors. The shoulders, head, neck, upper legs, and upper arms are the most common sites for these extra-abdominal desmoid tumors.
Symptoms of Desmoid Tumors
Desmoid tumors, while non-cancerous, have the potential to spread rapidly through nearby connective tissues. The presence of symptoms is typically associated with the growth and invasion of these surrounding tissues. The most prevalent symptom experienced by individuals with desmoid tumors is pain, which can vary in intensity. However, the specific symptoms can vary depending on the size and location of the tumor. For instance, intra-abdominal desmoid tumors may lead to constipation as they obstruct parts of the bowel. On the other hand, desmoid tumors located in the arms or legs can impede movement and cause limping due to their interference with the joints.