Familial cryptogenic fibrosing alveolitis: a case report.

A family of seven siblings is described, all of whom, developed finger clubbing during their third decade. Three of the seven developed cryptogenic fibrosing alveolitis (CFA). Of the remaining four siblings, two have died prematurely from conditions possibly associated with cryptogenic fibrosing alveolitis. The youngest two siblings remain asymptomatic at present. This paper reports one of the most concentrated incidences of the rare familial form of CFA.