What do you suggest if my mother had soft tissue sarcoma?

Do nothing: There are an array of soft tissue sarcomas most frequently seen in the extremities followed by the retroperitoneum. The most common lesions are related to the fatty tumors or liposarcomas, followed by the fibrous tissue tumors. In no instance is there any evidence that they are hereditary in nature so that follow up for such lesion is not necessary.

Surgery: Soft tissue sarcoma is treated with surgery. Radiation is often added. It is controversial if chemotherapy helps, so some doctors give it and some do not. It's a very rare tumor and except in rare cases, it's not genetically transmitted, so family members do not have to worry about increased risk of sarcoma unless there is very strong family history of cancer, as seen in some rare syndromes.

Sarcoma specialist: Per NCCN guidelines, patients should be diagnosed and managed at a multidisciplinary sarcoma center when possible. Type of sarcoma is critical. If tumor is localized, surgery and radiation are recommended with chemotherapy generally for patients for patients with intermediate or high grade tumors larger than 5 cm. Chemotherapy is the mainstay of therapy for patients whose tumors have spread.