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Uterine Sarcoma Treatment (PDQ®): Treatment - Health Professional Information [NCI] - Stage III Uterine Sarcoma

Standard treatment options:

  • Surgery (total abdominal hysterectomy, bilateral salpingo-oophorectomy, pelvic and periaortic selective lymphadenectomy, and resection of all gross tumor).

Treatment options under clinical evaluation:

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Stage Information for Cervical Cancer

Cervical carcinoma has its origins at the squamous-columnar junction whether in the endocervical canal or on the portion of the cervix. The precursor lesion is dysplasia or carcinoma in situ (cervical intraepithelial neoplasia [CIN]), which can subsequently become invasive cancer. This process can be quite slow. Longitudinal studies have shown that in untreated patients with in situcervical cancer, 30% to 70% will develop invasive carcinoma over a period of 10 to 12 years. However, in about 10% of...

Read the Stage Information for Cervical Cancer article > >

  1. Surgery plus pelvic radiation therapy.
  2. Surgery plus adjuvant chemotherapy.

Carcinosarcomas (the preferred designation by the World Health Organization) are also referred to as mixed mesodermal or mullerian tumors. Controversy exists about the following issues:

  • Whether they are true sarcomas.
  • Whether the sarcomatous elements are actually derived from a common epithelial cell precursor that also gives rise to the usually more abundant adenocarcinomatous elements.

The stromal components of the carcinosarcomas are further characterized by whether they contain homologous elements (such as malignant mesenchymal tissue considered possibly native to the uterus) or heterologous elements (such as striated muscle, cartilage, or bone, which are foreign to the uterus). Carcinosarcomas parallel endometrial cancer in its postmenopausal predominance and in other of its epidemiologic features; increasingly, the treatment of carcinosarcomas is becoming similar to combined modality approaches for endometrial adenocarcinomas.

Patients who present with uterine sarcoma have been treated on a series of phase II studies by the Gynecologic Oncology Group, including the GOG-87B trial, for example.[1,2] These chemotherapy studies have documented some antitumor activity for cisplatin, doxorubicin, and ifosfamide. These studies have also documented differences in response leading to separate trials for patients with carcinosarcomas and leiomyosarcomas. As an example, in patients previously untreated with chemotherapy, ifosfamide had a 32.2% response rate in patients with carcinosarcomas [3] and a 17.2% partial response rate in patients with leiomyosarcomas.[2]

A randomized comparison that was seen in the GOG-108 trial, for example, of ifosfamide with or without cisplatin for first-line therapy for patients with measurable advanced or recurrent carcinosarcomas demonstrated a higher response rate (54% vs. 34%) and longer progression-free survival (PFS) on the combination arm (6 months vs. 4 months), but there was no significant improvement in survival (9 months vs. 8 months).[4][Level of evidence: 1iiA] The follow-up GOG-0161 [NCT00003128] study utilized 3-day ifosfamide regimens (instead of the more toxic 5-day regimen in the preceding study) for the control and for a combination with paclitaxel (with filgrastim starting on day 4).[5] The combination was superior in response rates (45% vs. 29%), PFS (8.4 months vs. 5.8 months), and overall survival (13.5 months and 8.4 months). The hazard ratio for death favored the combination 0.69 (95% confidence interval, 0.49–0.97).[5][Level of evidence: 1iiA] In this study, 52% of 179 evaluable patients had recurrent disease, 18% had stage III disease, and 30% had stage IV disease. In addition, imbalances were present in the sites of disease and in the use of prior radiation therapy, and 30 patients were excluded for wrong pathology.

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WebMD Public Information from the National Cancer Institute

Last Updated: February 25, 2014
This information is not intended to replace the advice of a doctor. Healthwise disclaims any liability for the decisions you make based on this information.
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