[The association of pulmonary hemosiderosis and celiac disease. Apropos of a new case in a child].

A new case of pulmonary hemosiderosis with coeliac disease is reported. This is an extremely rare combination of which only nine instances have been published over the last 20 years. Three of the reported cases occurred in children. Apart from a marked predominance of males, the combination has no specific features. Firm evidence of a causal relationship between the two diseases is lacking but treatment with a gluten-free diet alone apparently had beneficial effects on the lung disease in two patients. Three pathogenic hypotheses are discussed herein: deposition of circulating immune complexes involving food allergens on the basement membrane of alveolar capillaries; reaction between antireticulin antibodies and an alveolar basement membrane antigen; or effect of adenovirus 12, a potential causative factor for celiac disease. Patients with idiopathic pulmonary hemosiderosis should routinely have tests for gluten intolerance, for instance a lactulose-mannitol intestinal permeability test. Lastly, other concomitant food allergies are reported.