title: A case of thrombus of the descending aorta successfully diagnosed on preoperative endoscopic ultrasonography.
abstract: A 45-year-old woman presented with left lower abdominal pain. A plain CT scan showed a slightly high-density, cord-like structure extending from the level of the diaphragm of the descending aorta to the superior mesenteric artery. Transgastric endoscopic ultrasonography (EUS) revealed a floating mass, smoothly attaching to the aortic intima and depicted as a hyperechoic region containing a mixture of hyperechoic and hypoechoic areas. EUS elastography revealed that the body of the mass consisted of medium soft tissue, with hard tissue at its base. On histopathological examination after surgery, the mass was found to consist mainly of fibrin, with no atypical cells. EUS examination should be used for the differential diagnosis between thrombi and tumors in the aorta.
authors.affiliation: Department of Gastroenterology, Kitasato University School of Medicine, Sagamihara, Kanagawa, 252-0374, Japan. t-iwai@kitasato-u.ac.jp.
authors.forename: Tomohisa
authors.initials: T
authors.lastname: Iwai
authors.affiliation: Department of Gastroenterology, Kitasato University School of Medicine, Sagamihara, Kanagawa, 252-0374, Japan.
authors.forename: Mitsuhiro
authors.initials: M
authors.lastname: Kida
authors.affiliation: Department of Gastroenterology, Kitasato University School of Medicine, Sagamihara, Kanagawa, 252-0374, Japan.
authors.forename: Toru
authors.initials: T
authors.lastname: Kaneko
authors.affiliation: Department of Gastroenterology, Kitasato University School of Medicine, Sagamihara, Kanagawa, 252-0374, Japan.
authors.forename: Hiroshi
authors.initials: H
authors.lastname: Yamauchi
authors.affiliation: Department of Gastroenterology, Kitasato University School of Medicine, Sagamihara, Kanagawa, 252-0374, Japan.
authors.forename: Kosuke
authors.initials: K
authors.lastname: Okuwaki
authors.affiliation: Department of Gastroenterology, Kitasato University School of Medicine, Sagamihara, Kanagawa, 252-0374, Japan.
authors.forename: Shiro
authors.initials: S
authors.lastname: Miyazawa
authors.affiliation: Department of Gastroenterology, Kitasato University School of Medicine, Sagamihara, Kanagawa, 252-0374, Japan.
authors.forename: Hiroshi
authors.initials: H
authors.lastname: Imaizumi
authors.affiliation: Department of Gastroenterology, Kitasato University School of Medicine, Sagamihara, Kanagawa, 252-0374, Japan.
authors.forename: Wasaburo
authors.initials: W
authors.lastname: Koizumi
mesh_terms: D001013:Aorta, Thoracic / Q000000981:diagnostic imaging* / Q000601:surgery; D001018:Aortic Diseases / Q000000981:diagnostic imaging* / Q000188:drug therapy / Q000601:surgery; D003287:Contrast Media; D054459:Elasticity Imaging Techniques / Q000379:methods; D019160:Endosonography / Q000379:methods*; D005260:Female; D006801:Humans; D008279:Magnetic Resonance Imaging; D008875:Middle Aged; D013927:Thrombosis / Q000000981:diagnostic imaging* / Q000188:drug therapy / Q000601:surgery; D014057:Tomography, X-Ray Computed; D014463:Ultrasonography / Q000379:methods*
chemical_list: D003287:Contrast Media
keywords: Aortic thrombus; Aortic tumor; Elastography; Endoscopic ultrasonography (EUS)