“…A further 88 patients reported by Weisberger (1958) showed approximately the same percentage-64-to be improved, and again the most favourable response was obtained in patients with breast and ovarian tumours. In a series of 25 patients with bronchial carcinoma described by Bass (1960) five with malignant effusions were treated by the direct intrapleural injection of HN2, there being no reaccumulation of fluid up to the time of death in four.Many authors agree (King et al, 1952;Storaasli et al, 1953 ;Kent et al, 1954;Wheeler et al, 1955) that Au-198 can produce slowing down or cessation of malignant effusions in about 50-60% of patients, and that the best response is obtained where the primary tumour arises in the breast or ovary. Hilton et al (1957) reported the results of treatment with Au-198 of 94 patients at University College Hospital.…”