SUMMARY Wegener's granulomatosis is a small vessel necrotizing vasculitis that can affect multiple organs, clinical forms are described localized and generalized the latter characterized by severe pulmonary and renal impairment associated with the presence of circulating PR3-ANCA in 90% of the cases. We describe three cases of patients with pathologic diagnosis of Wegener's granulomatosis, two of them had lung lesions detected on conventional radiography and computed tomography (CT) images consistent with lung abscesses, uncommon findings in the imaging manifestations of Wegener's granulomatosis the respiratory system also adds a third case peri esophageal abscess complicated. The importance and utility of conventional radiography and computed tomography (CT) for diagnosis of this disease and its complications.