“…Even in recent reports [Cloutier et al, 1993], bilateral BPFM are still considered exceedingly rare. This was not so in this series, with 1/11 having bilateral CCAML 1, or in the extensive literature review [Miller et al, 1980;Meagher et al, 1993;Haddon and Bowen, 1991;Revillon et al, 1993;Petit et al, 1987;Neilson et al, 1991;Heydanus et al, 1993;McKusick and Fisher, 1958;Chao and Monoson, 1990;Schenck, 1937;Levkoff et al, 1964;Willius, 1937;Numabe et al, 1994;Murray et al, 1994;Walker and Cudmore, 1990;Rempen et al, 1987]. In other words, bilateral lung involvement should be anticipated and looked for.…”