BACKGROUND Granulomatosis with polyangiitis(GPA)is a rare autoimmune disease that involves small-to-medium-sized vessels and forms necrotizing vasculitis with granulomatous inflammation.The formation of a large vessel...
Multifocal fibrosis is a rare condition occurring at any age and characterized by chronic inflammation, soft tissue proliferation and subsequent fibrosis of various vascular connective tissues. Following diagnosis in ...