Wegener's Granulomatosis & Microscopic Polyangitis
These are characterized by inflammation of the small blood vessels. The disease affects practically any organ most often the paranasal sinuses, lungs and kidneys. The condition can be life threatening if not diagnosed and treated appropriately. Diagnosis is by blood tests and imaging, often a biopsy of the affected site may be required. Treatment includes judicious use of corticosteroids and other immunosuppressants.