More than just the "Q-tip sign".
In the early days of transesophageal echocardiography, the "Q-tip sign" was occasionally mistaken for a left atrial mass. This area is now well recognized as a normal anatomic landmark dividing the left atrial appendage from the left upper pulmonary vein. However, in this report we describe 2 patients in whom pathology was found in this area, which should not be overlooked.
Agostini
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Division of Cardiovascular Diseases and Internal Medicine, Mayo Clinic and Foundation, Rochester, MN 55905, USA.
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D000368:Aged; D020517:Atrial Appendage / Q000000981:diagnostic imaging* / Q000473:pathology; D017548:Echocardiography, Transesophageal; D005260:Female; D005350:Fibroma / Q000000981:diagnostic imaging* / Q000473:pathology / Q000601:surgery; D006338:Heart Neoplasms / Q000000981:diagnostic imaging* / Q000473:pathology / Q000601:surgery; D006801:Humans; D009232:Myxoma / Q000000981:diagnostic imaging* / Q000473:pathology / Q000601:surgery; D011667:Pulmonary Veins / Q000000981:diagnostic imaging* / Q000473:pathology