An unusual renal presentation of Wegener's granulomatosis

A 63-year-old woman was admitted to our clinic with arthralgia, microhematuria and a pleural based solid mass in lower lobe basal segment of right lung seen in computerised tomogram of thorax. She was diagnosed as Wegener's granulomatosis by histopathological findings of right thoracotomy, wedge resection and decortication. The patient had positive antineutrophil cytoplasmic antibodies (c-ANCA) in serum and tissue specimens. Histopathologic examination of the renal biopsy specimen revealed the diagnosis of tubulointerstitial nephritis. We report this case because of the unusual histologic type of renal involvement by reviewing the literature.