“…Analysis of the hospital mortality (Table V) (Prorok and Nealon, 1968), pleuroscopy and poudrage (Scarbonchi and Razzouk, 1967), and simple pleurectomy (Merlier, le Brigand, and Wapler, 1968;Lanitis and Waridel, 1973), the latter having the additional advantage of pain relief. However, the most satisfactory means of achieving pleural symphysis appears to be tube drainage with maintained suction and the introduction of cytotoxic agents (Leininger, Barker, and Langston, 1969;Anderson, Philpott, and Ferguson, 1974), the latter causing adhesion largely by their irritant action on the pleural surfaces. Pain due to chest wall involvement is most effectively relieved by palliative radiotherapy (Schlienger et al, 1969).…”