Moderate anemia appeared to be an independent prognostic factor in squamous cell carcinoma of the head and neck treated with radiation therapy alone.

One hundred thirty-eight patients, who were followed for a minimum of 5 years, had either surgery and postoperative radiotherapy (48 patients) or radiotherapy only (90 patients) for metastatic epidermoid carcinoma in cervical nodes from an unknown head and neck primary. All received radiotherapy to the presumed occult sites. Forty-five percent presented with a single unilateral adenopathy. Those who were initially operable had a neck recurrence rate of 17% and a survival rate of 53%. Forty-three percent of initially inoperable patients recurred and only 25% survived. Patients with adenopathy which completely regressed or became resectable after irradiation had an 80% locoregional control. Only 4% developed an overt cancer at an occult site within 5 years.

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