title: "Nipple" and "hawk's beak" appearances on contrast left ventricular angiography in Takotsubo syndrome: what's in a sign?
authors.affiliation: Icahn School of Medicine at Mount Sinai, New York, NY, United States; Division of Cardiology, Elmhurst Hospital Center, Elmhurst, NY, United States. Electronic address: madiasj@nychhc.org.
authors.forename: John E
authors.initials: JE
authors.lastname: Madias
mesh_terms: D003287:Contrast Media; D017023:Coronary Angiography; D003937:Diagnosis, Differential; D006801:Humans; D054549:Takotsubo Cardiomyopathy / Q000000981:diagnostic imaging*; D018487:Ventricular Dysfunction, Left / Q000000981:diagnostic imaging*
chemical_list: D003287:Contrast Media
keywords: Left ventricular contrast angiography; Takotsubo syndrome; Takotsubo variants; Wall motion abnormalities