2018-09-102018-09-102016http://www.scopus.com/inward/record.url?eid=2-s2.0-84955572021&partnerID=MN8TOARShttp://scholars.lib.ntu.edu.tw/handle/123456789/396323Urachal remnant anomalies are rare, and vesicourachal diverticu-lum is the most uncommon subtype of these anomalies. We present such a rare case of vesicourachal diverticulum that is incidentally discovered during the staging surveillance of a known esophageal cancer with 18F-FDG PET/CT. The physiological urinary excretion of radiopharmaceutical in the vesicourachal diverticulum mimics intra-abdominal malignancy, which resolves spontaneously in the follow-up FDG PET/CT. Copyright ? 2016 Wolters Kluwer Health, Inc. All rights reserved.Esophageal cancer; FDG PET/CT; Urachal remnant anomaly; Vesicourachal diverticulum[SDGs]SDG3antineoplastic agent; fluorodeoxyglucose f 18; fluorodeoxyglucose f 18; radiopharmaceutical agent; abdominal cancer; adjuvant chemoradiotherapy; adjuvant therapy; adult; advanced cancer; Article; bladder diverticulum; cancer radiotherapy; cancer staging; cancer surgery; case report; colon adenoma; computer assisted emission tomography; drug excretion; esophageal squamous cell carcinoma; esophagus resection; follow up; human; image reconstruction; incidental finding; intestine injury; lymph node metastasis; male; middle aged; radical resection; regional metastasis; urinary excretion; vesicourachal diverticulum; abdominal tumor; abnormalities; diagnostic imaging; differential diagnosis; diverticulosis; esophagus tumor; positron emission tomography-computed tomography; urachus; urinary tract; urine; Abdominal Neoplasms; Diagnosis, Differential; Diverticulum; Esophageal Neoplasms; Fluorodeoxyglucose F18; Humans; Incidental Findings; Male; Middle Aged; Positron Emission Tomography Computed Tomography; Radiopharmaceuticals; Urachus; Urinary Tractjournal article10.1097/RLU.0000000000001138