“…This lesion can be diffuse or localized and is usually found in certain diseases that predominantly involve the alveolar septa: sarcoidosis (Nickerson, 1937), berylliosis (Dutra, 1948), asbestosis (Telischi and Rubenstone, 1961), eosinophilic granuloma of the lung (Auld, 1957), Abt-Letterer-Siwe disease (van Creveld and ter Poorten, 1935), Hand-Schuller-Christian disease (Keats and Crane, 1954), diffuse scleroderma (Mahrer, Evans, and Steinberg, 1954), rheumatoid arthritis (Rubin, 1955), dermatomyositis (Mills and Mathews, 1956), some cases of progressive pulmonary fibrosis-Hamman-Rich syndrome (Peabody, Buechner, and Anderson, 1953), and tuberculosis (Buechner and Anderson, 1955). Some authors consider it a consequence of interstitial pulmonary fibrosis (Anderson and Foraker, 1960;Pimentel, 1962).…”