[Localized pulmonary pseudo-tumoral form of Wegener's disease and fulminating evolution. Apropos of a case].

A case of Wegener's granulomatosis starting as a localized pseudo-tumoral lung lesion and following a fulminating course is reported. The histological diagnosis required thoracotomy. New pulmonary lesions developed post-operatively, together with severe renal failure which was responsible for the patient's death 5 weeks after the thoracotomy. The authors describe the lesions characteristic of the disease and their pathogenesis and discuss the relationship between Wegener's syndrome and other granulomatous angiitis.