Y. SahasakulS. ChaithiraphanP. PanchavinninP. JootarV. ThongtangS. SriyochatiMahidol University2018-08-102018-08-101992-01-01Journal of the Medical Association of Thailand. Vol.75, No.1 (1992), 50-55012522082-s2.0-0026474190https://repository.li.mahidol.ac.th/handle/20.500.14594/22448Cor triatriatum presenting in adulthood is extremely rare. An 18-year-old female patient presented with a clinical picture masquerading mitral valvular heart disease. Both transthoracic and transesophageal echocardiography demonstrated a membrane in the left atrium with no other cardiac anomaly. The patient was successfully operated on without the need for catheterization.Mahidol UniversityMedicineTransthoracic and transesophageal echocardiographic diagnosis of cor triatriatum: operation without catheterization in an adult patient.ArticleSCOPUS