title: Urachal inflammatory mass mimicking an intra-abdominal tumor two years after excision of the urachal sinus in a child.
abstract: A 2-year-and-2-month-old boy presented with a tender fist-sized mass in the lower abdomen for 3 days. Turbid urine was also a complaint. His urachal sinus and umbilicus had been removed at the age of 2 months. Abdominal ultrasonography and computed tomography revealed a tumor mass beneath the lower abdominal wall. Total excision of the mass was performed. Microscopic examination showed an abscess located next to a small urachal remnant without stitches or foreign body reaction. To our knowledge, an urachal inflammatory mass mimicking an intra-abdominal tumor after excision of the urachal sinus, especially in children, is very rare. The factors causing such an urachal mass are discussed.
authors: Department of Pediatrics, Chang Gung Children's Hospital, 123, Dabi Road, Niaosung Shiang, Kaohsiung, Taiwan 833, ROC. tmm@cgmh.org.tw
authors: Mao-Meng
authors: MM
authors: Tiao
authors: Sheung-Fat
authors: SF
authors: Ko
authors: Shun-Chen
authors: SC
authors: Huang
authors: Chie-Song
authors: CS
authors: Shieh
authors: Chao-Long
authors: CL
authors: Chen
mesh_terms: D000008:Abdominal Neoplasms / Q000175:diagnosis*; D000038:Abscess / Q000175:diagnosis*; D002675:Child, Preschool; D006801:Humans; D008297:Male; D011183:Postoperative Complications / Q000175:diagnosis*; D014472:Umbilicus / Q000002:abnormalities*; D014497:Urachus / Q000002:abnormalities* / Q000601:surgery*