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Chronic Periaortitis: an Update
Alessandra Palmisano1, Federica Maritati1, Augusto Vaglio2,3
1Nephrology Unit, Parma University Hospital, Parma, Italy.
Purpose Of Review:
We aim to review traditional concepts and recent developments on the nosology, pathophysiology, clinical phenotypes and treatment of chronic periaortitis (CP).
Recent Findings:
CP is a rare disorder hallmarked by a periaortic fibro-inflammatory tissue. It can present as an isolated disease, but it can also be associated with other autoimmune and fibro-inflammatory lesions (e.g., fibrosing mediastinitis, sclerosing pancreato-cholangitis) that are part of the spectrum of IgG4-related disease. In a subgroup of patients, it also involves the thoracic aorta (so-called "diffuse periaortitis"), which supports the notion of an inflammatory disorder of large arteries. The pathogenesis of CP is multifactorial: recent studies have elucidated the predisposing role of immunogenetic variants and exposures to environmental agents such as smoking and asbestos. CP is a rare immune-mediated disease that affects the abdominal aorta and the iliac arteries and, in some cases, the thoracic aorta. It may overlap with manifestations of IgG4-related disease, and its treatment comprises glucocorticoids, conventional and biological immunosuppressive agents.
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