title: Angelchik antireflux device: computed tomography appearance.
abstract: The Angelchik antireflux prosthesis is a silicon gel-filled, doughnut-shaped device with a tantalum tie strap that wraps around the gastroesophageal junction after reduction of a hiatal hernia. If dislodged, this prosthesis may produce a confusing picture on computed tomography, as it is of soft tissue density and may mimic a mass lesion. The computed tomography appearance of a normally placed prosthesis is demonstrated, and a case of prosthesis dislodgment diagnosed by computed tomography is reported.
mesh_terms: D000328:Adult; D004943:Esophagogastric Junction / Q000000981:diagnostic imaging; D005260:Female; D005764:Gastroesophageal Reflux / Q000517:prevention & control*; D006548:Hernia, Diaphragmatic / Q000601:surgery*; D006551:Hernia, Hiatal / Q000601:surgery*; D006801:Humans; D011183:Postoperative Complications / Q000000981:diagnostic imaging*; D019736:Prostheses and Implants / Q000009:adverse effects*; D011474:Prosthesis Design; D011475:Prosthesis Failure; D012828:Silicones; D014057:Tomography, X-Ray Computed
chemical_list: D012828:Silicones