Postradiation-associated sclerosing mediastinitis diagnosed in fine needle aspiration specimen: A cytological–pathological correlation

Published on Apr 1, 2017in Annals of Diagnostic Pathology1.877
· DOI :10.1016/J.ANNDIAGPATH.2017.01.004
Tamar Giorgadze14
Estimated H-index: 14
(Cornell University),
June Koizumi13
Estimated H-index: 13
(Cornell University)
+ 2 AuthorsCynthia M. Magro58
Estimated H-index: 58
(Cornell University)
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Abstract
Abstract Sclerosing mediastinitis (SM) is an aggressive fibroproliferative process in the mediastinum that may lead to encasement of mediastinal structures within a dense fibrotic mass. This disease may cause significant clinical complications, morbidity, and even mortality. The etiology and pathogenesis of SM is unclear and in more than one third of cases remains idiopathic. Among the known causes of SM, granulomatous infection is the commonest. Association of SM with radiation therapy has been rarely reported. Herein, we are reporting a case of postradiation sclerosing mediastinitis diagnosed in fine needle aspiration (FNA) specimen. To our knowledge, this is the first reported case of postradiation sclerosing mediastinitis with unusual striking intracytoplasmic glycogen accumulation. Having high index of suspicion and awareness of the fact that this entity may be also associated with radiation therapy, will be helpful in avoiding diagnostic pitfalls in FNA specimens and guiding proper clinical management.
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The chapter on Nonneoplastic Thymic Lesions will cover the epidemiological, etiological and clinicopathological features of common thymic lesions (congenital and acquired cysts, including dysplasia); thymic follicular, rebound and “true” hyperplasia) as well as rare or recently described non-neoplastic thymic alterations that may form mass lesions and can mimic thymic neoplasms (“Lesa-like thymic hyperplasia”; “Cholesteroloma”; Fibrosing mediastinitis, including IgG4-related disease). Criteria c...
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