Yes, soft tissue sarcoma can appear suddenly. Soft tissue sarcoma is a type of cancer that forms in the soft tissues of the body, such as fat, muscles, nerves, tendons, and blood vessels. It is not considered a hereditary cancer, but can still arise without warning.
In most cases, soft tissue sarcoma will present as a lump or mass that forms under the skin without any warning signs or symptoms. It can grow quickly and may be painful or not painful, depending on the location. It may also be associated with swelling or fluid accumulation.
Soft tissue sarcoma can also cause other symptoms in some cases. These may include fever, night sweats, weight loss, fatigue, and nausea. In rare cases, it can cause changes in sensation or movement, and even paralysis.
If a soft tissue sarcoma is suspected, it is important to see a doctor for a medical evaluation. Diagnosis typically involves a physical exam, imaging tests, and a biopsy. Treatment usually involves surgery, radiation, and/or chemotherapy. Early diagnosis and treatment can be key to a successful outcome.