Surgery for Soft Tissue Sarcomas - A Detailed Review

What Is Soft Tissue Sarcoma?

Cancers originating in soft tissues (tendons, lymph, muscles, blood arteries, fat, and nerves) are called soft tissue sarcomas. These tumors can appear anywhere on the body but are most frequently observed in the stomach, limbs, and legs.

Why Is Margin Status Crucial in Soft Tissue Sarcoma Surgery?

Determining the margin status is essential for informing subsequent treatment choices and evaluating the overall effectiveness of surgery in reducing the likelihood of soft tissue sarcoma recurrence.

• Positive Margins: When cancer cells are found at the margins of removed tissue, positive margins are indicated, which may indicate persistent cancer. In some cases, other therapies such as radiation therapy (employs radiation to eradicate cancer cells) or a follow-up surgery might be required to treat any cancer cells that remain.

• Negative Margins: Negative or clear margins indicate that the cancer has not spread to the margins of the excised tissue. When sarcomas have well-defined margins, there is a notably reduced chance of recurrence after surgery, which may mean surgery is the only treatment required.

What Are the Types of Surgery for Soft Tissue Sarcoma?

Surgery is usually used to treat soft tissue sarcomas. The goal is to remove the tumor entirely and a 0.39 to 0.78 inches margin of healthy tissue around it to reduce the possibility of leaving cancerous cells behind. Several variables, including the size and location of the tumor, affect how well surgery works in treating various sarcomas. The presence or absence of cancer along the margins (edges) of the material is assessed by microscopic analysis of the removed tissue. The importance of surgery as the primary therapeutic option for soft tissue sarcomas is highlighted by the careful approach of ensuring clear margins, which increases the possibility of eradicating the malignancy and preventing its recurrence.

Surgery to the Chest, Abdomen, and Pelvis

• Surgery, especially in the chest and abdomen, is frequently the initial treatment for soft tissue sarcomas involving the chest, abdomen, and pelvis.

• Complete cancer eradication is the main goal of surgery, which is typically accomplished by wide local excision, which involves removing the tumor along with a border of healthy tissue. Removing any possible cancer cells in this method lowers the chance of sarcoma recurrence.

• Retroperitoneal sarcomas present difficulties since they are situated in the deeper abdominal region, close to essential organs, making their total removal and the margin of healthy tissue difficult.

• It is advised to have postoperative radiation therapy, particularly if sarcomas in the chest or abdomen are removed. Radiation therapy aims to increase the overall effectiveness of the treatment plan by ensuring the elimination of any cancer cells that may still exist.

Sarcoma Surgery for the Legs and Arms

• When treating soft tissue sarcomas in the extremities, surgeons often use a procedure called "limb-sparing surgery" to remove the tumor without cutting off a limb. The goal of this surgery is to maintain the functionality of the damaged limb, and it is commonly combined with radiation and sometimes chemotherapy. When significant nerves and blood vessels are affected by a tumor, making limb-sparing surgery impractical, or when total cancer removal is not possible, amputation becomes an important option.

• If the sarcoma returns after limb-sparing surgery, suggesting a need for extended treatments, amputation might be advised. The location, features, and likelihood that limb-sparing surgery will not be feasible due to the sarcoma's position all play a role in the decision to remove. Even in difficult cases of soft tissue sarcoma, amputation is still a feasible choice to guarantee efficient cancer treatment and lower the chance of recurrence.

Surgery to the Head and Neck

• A patient and the surgeon will have a detailed discussion regarding the exact location and size of the tumor before deciding whether or not to proceed with surgery for a head and neck tumor. Patients must be informed of the extent of the tissue removed and the possible consequences following surgery.

• Surgeons prioritize reducing effects on speech, swallowing, and appearance. However, following surgery, there is a chance of experiencing a brief impairment in speaking, swallowing, or feeding. Patients are assisted in addressing these issues by a speech-language pathologist (SLT) for exercises in communication and a nutritionist for dietary guidance before and following surgery.

• Simultaneously, reconstructive surgery may be undertaken when removing tissue essential for speech or swallowing or when it affects appearance. A plastic surgeon usually takes tissue from other locations, such as the chest, thigh, or forearm, to replace the tissue removed from the head and neck region. This ensures the patient can recover fully and appear normal following surgery.

Surgery to Treat a Metastatic Sarcoma

• Sarcoma is referred to as secondary or metastatic cancer when it spreads to other bodily parts. The liver and lungs are frequent sites of sarcoma metastasis. Surgery to remove portions of the lung or liver sarcoma may be an option in certain circumstances. However, this is limited to a small number of patients with several subsequent malignancies.

• The doctor may recommend specialized surgical procedures for sarcoma that has spread to the liver or lung. One of these is laser therapy, which targets cancer cells with a high-powered light beam to burn and kill them, particularly tiny metastases up to 1.96 inches in size.

• With the fewest possible adverse effects, these procedures attempt to eradicate cancer cells in the liver or lungs. However, not everyone is a good candidate for these treatments. Surgery may not be an option if the sarcoma has spread to organs other than the liver or lungs. Then, the doctor might suggest radiation therapy or chemotherapy instead.

Reconstructive Surgery

• When treating sarcomas that necessitate significant tissue excision, reconstructive surgery is crucial. Under the direction of a plastic surgeon, this surgery is carried out in combination with the main operation to maximize wound healing and restore the damaged area's appearance and functionality.

• Depending on the location of the sarcoma and the amount of tissue resection required, one can directly reattach the edges, use skin grafts (it involves transplanting a portion of skin from one place to another), or use tissue flaps.

• To guarantee that the patient fully understands the reconstructive process, the surgeon and trained nurse answer every inquiry the patient may have before the procedure.

Conclusion

Surgery continues to be a vital component of treating soft tissue sarcomas. To maximize results, adequate surgical resection with clear margins is necessary. However, since soft tissue sarcomas show complex behavior, treating them requires a multidisciplinary strategy that includes surgery along with radiation or chemotherapy to address the wide range of tumor types. To maximize long-term outcomes and raise the standard of patient care overall, close postoperative monitoring and teamwork among medical personnel are essential.