title: Signet-ring cell carcinoma of ampulla of Vater: contrast-enhanced ultrasound findings.
abstract: Signet-ring cell carcinoma (SRCC) of ampulla of Vater is extremely uncommon, and less than 15 cases have been reported so far in literature. It mainly occurs in elderly people (median age 57 years). We report a rare case of SRCC of the ampulla of Vater in a 38-year-old woman who presented with a small tumor at the Vater, discovered by the contrast-enhanced ultrasound (CEUS). Histopathological examination showed prominent signet-ring features. We also describe the imaging features of SRCC of ampulla of Vater in CEUS.
authors.affiliation: Department of Ultrasound, Shengjing Hospital of China University, Shenyang, Liaoning Province, China.
authors.forename: Jin-Mei
authors.initials: JM
authors.lastname: Gao
authors.forename: Shao-Shan
authors.initials: SS
authors.lastname: Tang
authors.forename: Wei
authors.initials: W
authors.lastname: Fu
authors.forename: Rong
authors.initials: R
authors.lastname: Fan
mesh_terms: D000328:Adult; D014670:Ampulla of Vater / Q000000981:diagnostic imaging* / Q000473:pathology / Q000601:surgery; D018279:Carcinoma, Signet Ring Cell / Q000000981:diagnostic imaging* / Q000473:pathology / Q000601:surgery; D003138:Common Bile Duct Neoplasms / Q000000981:diagnostic imaging* / Q000473:pathology / Q000601:surgery; D003287:Contrast Media; D004386:Duodenum / Q000601:surgery; D005260:Female; D005743:Gastrectomy; D006801:Humans; D008197:Lymph Node Excision; D010180:Pancreatectomy; D016896:Treatment Outcome; D014463:Ultrasonography
chemical_list: D003287:Contrast Media