The authors reviewed 164 cases of head and neck sarcoma from adult patients seen at the University of California, Los Angeles (UCLA), between 1955 and 1988. The median follow‐up was 70 months. Multivariate analysis demonstrated that tumor grade, size, and surgical margin status were the most important independent prognostic factors. Thirty‐one percent (27 of 85) of patients with high‐grade lesions were free of disease versus 81% (44 of 55) with low‐grade lesions at last follow‐up. Sixty‐seven percent (50 of 76) of patients with lesions smaller than 5 cm were free of disease versus; 38% (33 of 88) with lesions larger than 5 cm. In 16 patients, low‐grade lesions, measuring less than 5 cm and with negative margins histologically, were controlled with surgery alone. For the 94 patients whose primary tumors were treated at UCLA, local control was achieved in 52% (26 of 50) of patients treated with surgery alone and 90% (20 of 22) with combined therapy (surgery and radiation therapy [RT] with or without chemotherapy). Seventy‐five percent (6 of 8) of patients with positive surgical margins treated with post‐operative RT achieved local control versus 26% (5 of 19) of patients receiving no additional treatment. In conclusion, surgery alone appears to be adequate treatment for small, low‐grade tumors and negative surgical margins. Patients with incomplete resection or high‐grade tumors should receive aggressive treatment–surgery and RT.
Background. With improvement in survival after cancer treatment, it is becoming increasingly important to examine treatment‐related morbidity and mortality. Sarcomas can develop in the irradiated field after radiation therapy (RT). The authors undertook a study to estimate the risk, and compared the risk of postirradiation sarcoma (PIS) with other treatment modalities used against cancer. Methods. Since 1987 the authors have reviewed the records of 1089 patients with head and neck, gynecologic, gastrointestinal, and extremity sarcomas. Of these 1089 patients, 37 had a prior history of RT. Results. Conditions for which these patients received RT included: Hodgkin's disease (2 patients), retinoblastoma (3), non‐Hodgkin's lymphoma (2), acne (1), astrocytoma (1), multiple recurrent mixed parotid tumor (1), laryngeal cancer (1), papillary adenocarcinoma of the thyroid (1), bony fibrous dysplasia (1), lymphangioma (1), squamous cell carcinoma of the nasopharynx (1), Ewing's sarcoma (1), choriocarcinoma (1), menorrhagia (4), cervical cancer (6), ovarian cancer (2), breast cancer (7), and hypoplasia (1). RT doses ranged from 3000 to 12,440 cGy. Latency time from RT to the development of PIS averaged 12 years. More than 15,000 patients have received RT for various conditions at our institution since 1955. Conclusions. From our data and a review of the literature, we estimate the risk of PIS with long‐term follow‐up to be 0.03–0.8%. From a review of the literature that compared mortality risks of chemotherapy, general surgery, and anesthesia, the risk of PIS appears no worse. Thus, given the large number of patients who can be cured or receive palliative treatment with RT, concern regarding PIS should not be a major factor influencing treatment decisions in patients with cancer.
Background. Radiation recall refers to a tissue reaction produced by a chemotherapeutic agent in a previously irradiated field that would not occur in a nonirradiated field. A number of agents have been reported to cause radiation recall. Recently, there have been case reports of recall dermatitis from paclitaxel treatment. Methods. A patient with metastatic lung cancer received palliative radiation to her mediastinum and ribs. Because of disease progression, she subsequently received paclitaxel. Results. After paclitaxel administration, the patient became acutely dyspneic. A subsequent chest X‐ray revealed a parenchymal opacity in a region that corresponded with the patient's radiation portal. She also developed a severe skin reaction in the previously treated electron field. Conclusions. This is one of few reported cases of recall dermatitis from paclitaxel and is also suggestive of recall pneumonitis, a phenomenon previously unreported to the authors' knowledge. Given paclitaxel's ability to function as a radiosensitizer, this response is not unexpected. As the frequency of paclitaxel administration increases, its potential as a radiation sensitizer and radiation recall should be considered. Cancer 1995;76: 1069–72.
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