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04 July 2022: Articles

Acute Mitral Regurgitation Due to Chordae Tendineae Rupture: A Rare Presentation of Cardiac Amyloidosis

Unusual clinical course, Challenging differential diagnosis, Rare disease

Regina Aguilar-López A , Cristopher Cándido Sánchez-Rodríguez A , Daniel Manzur-Sandoval A , María Flores Calvo A , Alberto Aranda-Fraustro A , Antonio Jordán-Ríos A , Alejandro Francisco-Cruz A , Gustavo Rojas-Velasco A*

DOI: 10.12659/AJCR.936545

Am J Case Rep 2022; 23:e936545

Figure 6. Native mitral valve showing Congo red positive deposits. (A) Subendocardial and spongiosa stroma with mild thickening (black arrowhead) (hematoxylin and eosin ×250). (B, C) Laminar and linear positive staining pattern in the subendothelial stroma (black arrowheads) (Congo red and crystal violet, ×100 and ×250]. (D) Granular calcium pattern in the cytoplasm of endothelial and stromal cells (black arrowhead) (Von Kossa; ×100 and ×250).

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American Journal of Case Reports eISSN: 1941-5923
American Journal of Case Reports eISSN: 1941-5923