title: [Giant abscessed urachal cyst in adult. Case report].
abstract: BACKGROUND
  during gestation, the urachus represents the connection between the dome of the bladder and the allantoic duct. This infection occurs preferentially in young adults, advocating the haematogenous or lymphatic pathway as possible routes of transmission, while a cord or bladder origin may also occur. Urachal cysts are rare in adult life, and is observed in only about 2% of adults.
  
  
  METHODS
  A 30-year-old male patient with a history of alcoholic hepatitis, diabetes mellitus type 2, chronic malnutrition, increased volume beginning with generalized abdominal pain, abdominal tumor of 20 by 15 cm, mobile, solid, without signs of peritoneal irritation. CT showed the presence of tumor, probably bladder-dependent, and apparently cystic. Exploratory laparotomy was found infected urachal cyst, draining 3,000 cc purulent material. A partial resection of the anterior face, keeping the back by firm adherence to bowel loops was done and is evolving satisfactorily.
  
  
  CONCLUSIONS
  urachal abnormalities are rare, with male / female ratio of 2 / 1. Although urachal abscess is an infection confined to an enclosed space, definitive treatment should not be the simple incision and drainage, because of the possibility of malignant transformation of urachal remnants. The definitive treatment should be considered complete excision of urachal cyst, when the infection is limited.
  
  
  CONCLUSIONS
  the urachus cyst is a rare pathology and is a diferencial diagnosis for acute appendicitis and it is necessary to know this treatment.
authors: Servicio de Cirugía General. Hospital Ángeles Metropolitano, México DF, Mexico. kamelv@hotmail.com.
authors: Luis Virgilio
authors: LV
authors: Ponce-Pérez
authors: Servicio Cirugía General. Hospital General de Cuautla, Cuautla, Morelos, Mexico.
authors: Luis Eduardo
authors: LE
authors: Cárdenas-Lailson
authors: Servicio Cirugía General. Hospital General de Cuautla, Cuautla, Morelos, Mexico.
authors: Guillermo
authors: G
authors: Domínguez-Muñoz
authors: Servicio Cirugía General. Hospital General de Cuautla, Cuautla, Morelos, Mexico.
authors: Yazmín Araceli
authors: YA
authors: López-Díaz
authors: Servicio de Cirugía General. Hospital Ángeles Metropolitano, México DF, Mexico.
authors: Fernando
authors: F
authors: Vera-Rodríguez
mesh_terms: D018784:Abdominal Abscess / Q000209:etiology* / Q000601:surgery; D015746:Abdominal Pain / Q000209:etiology; D000328:Adult; D001064:Appendicitis / Q000175:diagnosis; D003924:Diabetes Mellitus, Type 2 / Q000150:complications; D003937:Diagnosis, Differential; D006801:Humans; D016867:Immunocompromised Host; D007813:Laparotomy; D008108:Liver Diseases, Alcoholic / Q000150:complications; D008297:Male; D044342:Malnutrition / Q000150:complications; D014496:Urachal Cyst / Q000150:complications* / Q000175:diagnosis / Q000196:embryology / Q000601:surgery
keywords: adult urachal cyst; divertículo de uraco; quiste de uraco abscedado; quiste de uraco en adulto; urachal cyst abcess; urachal diverticulum