Concomitant hydroxyurea and irradiation. Clinical experience with 100 patients with advanced head and neck cancer at Pennsylvania hospital.

One hundred outpatients with proved advanced epidermoid carcinoma of the head and neck underwent complete treatment with concomitant hydroxyurea and irradiation therapy. Seventy-three patients exhibited complete regression of the tumor. All patients became candidates for operation after completion of combination therapy, although not all patients accepted surgery.