Wegener’s granulomatosisaccompanied by diffuse alveolar hemorrhage is a rare and life-threatening disease. Diagnosis should be established rapidly by evaluating many subjective complaints together and the treatment should be performed as soon as possible. In this case, various differential diagnosis and treatment applications which were performed in 39-year-old male patient within the period beginning from the onset of symptoms of the disease to establishment of the diagnosis were emphasized and it was aimed to highlight the fact that this mortal disease requires more attention.

Keywords: Diffuse alveolar hemorrhage syndromes, Wegener’s granulomatosis, c-ANCA