[A case of Wegener's granulomatosis with a giant solitary pulmonary mass].

A 44-year-old woman was admitted to hospital with a history of high fever, cough, and weight loss. Her chest X-ray film showed a giant solitary pulmonary mass in the left lower lobe. After admission, she developed bilateral eyeache and left exophthalmos. CT film of the head showed a massive lesion in the sinuses. Biopsy specimens obtained from both massive lesions showed either epithelioid granulomas with Langhans' giant cells or necrotising vasculitis. Antineutrophil cytoplasmic antibodies, which have high sensitivity and specificity for active WG, were found. The diagnosis of WG was thus made.