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Chiari network is an embryonic remnant of valves of the sinus venosus, which can be observed in several locations in the right atrium. Although it is usually considered a normal anatomic variant, when associated with certain clinical conditions, the Chiari network may become a confusing finding, and a careful differential diagnosis is required. It should be differentiated from a tricuspid valve disruption, vegetation, thrombus, or tumoral mass. In this case report, we describe a singular case of endocarditis over a Chiari network in a seven-year-old boy that was successfully managed in a conservative fashion.


Marc Figueras-Coll, Anna Sabaté-Rotés, Noemí Cañete-Abajo, Blanca Domènech-Ximenos. The Chiari Network-Only an Embryonic Remnant or a Confusing Finding? World journal for pediatric & congenital heart surgery. 2020 Jul;11(4):NP47-NP49

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PMID: 28825388

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