[Pulmonary siderosis in an arc welder].

An arc welder of 32 years of age is presented with a random finding of miliar reticulonodular shadows in the plain film of the thorax. Subjectively and objectively the patient appears healthy. The presence of a pneumoconiosis is confirmed by biopsy. Differential diagnosis had to consider sarcoidosis and pulmonary siderosis in view of the known professional anamnesis. This case report underlines the reped demand to assess x-ray films of the thoracic organs only if the clinical findings and anamnesis are thoroughly known.