Midline granulomatosis
Wegener's granulomatosis is a rare disorder in which blood vessels become inflamed, making it hard for blood to flow.
Wegener's granulomatosis mainly affects blood vessels in the nose, sinuses, ears, lungs, and kidneys, although other areas may be involved.
The cause is unknown. It is thought to be an autoimmune disorder.
Wegener's granulomatosis is most common in middle-aged adults. It is rare in children, but has been seen in infants as young as 3 months old.
Channick RN, Rubin LJ. Pulmonary Vaculitis and Primary Pulmonary Hypertension. In: Mason RJ, Murray JF, Broaddus VC, Nadel JA, eds. Textbook of Respiratory Medicine. 4th ed. Philadelphia, Pa: Saunders Elsevier; 2005: 1462-1463.
Calabrese LH, Molloy ES, Duna G. Antineutrophil Cytoplasmic Antibody-Associated Vasculitis. In: Firestein GS, Budd RC, Harris ED Jr., McInnes IB, Ruddy S, eds. Kelley's Textbook of Rheumatology. 8th ed. Philadelphia, Pa: Saunders Elsevier; 2008: Chap 82.