“…Goldstein et al (1969), in a review of immunoglobin levels in 84 patients with sarcoidosis, mentioned two, both black women, who had no IgA; one, aged 38, had chronic pulmonary sarcoidosis, and the other, aged 39, had BHL with erythema nodosum; in neither was there evidence of undue susceptibility to infections. Davis et al (1970) reported the case of a man, aged 36, who had had recurrent episodes of otitis media and two of pneumonia, and was found to have IgA deficiency; intermittent diarrhoea was assocated with nodular hyperplasia of the lymphoid tissue of the small intestine; ehest radiography showed enlargement of hilar and right paratracheallymph-nodes and rounded shadows in both lower lobes ; biopsy of a scalene lymph-node showed sarcoidtype granulomas; and the hilar lymph-node enlargement and lung shadows subsided spontaneously. Sharma and Chandor (1972) described the case of a 31 year old woman with selective serum and salivary IgA deficiency in whom enlargement of peripherallymph-nodes and lung infiltration was attributed to sarcoidosis, supported by biopsy of a scalene lymph-node.…”