title: Complex localization of single-rod contraceptive implant. Report of two clinical cases.
abstract: BACKGROUND
  The subdermal single-rod contraceptive implant is used by more than one million women worldwide. In México there are ~ 600,000 colocated implants. Cases of complex implant localization caused by a deep insertion procedure have been reported.
  
  
  METHODS
  Two clinical cases of implant with complex localization are presented. Case 1: we present a 21-year-old female. After the insertion procedure during the 12-, 24-, and 36-month revisions, the implant could not be located. Case 2: we present a 28-year-old female with subdermal single-rod contraceptive implant co-located in the external side of the left arm, partially palpable on the extreme distal area. Transverse cut of ultrasound showed the extreme distal area of the implant at 6 and 7 cm, respectively, at the site of insertion (scar).
  
  
  CONCLUSIONS
  Due to simplicity and accessibility, ultrasound is the selected method for identifying deep nonpalpable implants.
authors.affiliation: Servicio de Ginecología y Obstetricia, Hospital General de México (HGM), Secretaría de Salud, México, D. F., Mexico. bugr03@prodigy.net.mx.
authors.forename: Rafael Gerardo
authors.initials: RG
authors.lastname: Buitrón-García Figueroa
authors.forename: Alejandro
authors.initials: A
authors.lastname: Rodríguez-Báez
authors.forename: Juan
authors.initials: J
authors.lastname: González-de la Cruz
authors.forename: Armando
authors.initials: A
authors.lastname: Vargas-Domínguez
authors.forename: Roger
authors.initials: R
authors.lastname: Lara-Ricalde
authors.forename: Braulio
authors.initials: B
authors.lastname: Otero-Flores
mesh_terms: D000328:Adult; D001132:Arm / Q000000981:diagnostic imaging; D003271:Contraceptive Agents, Female / Q000008:administration & dosage*; D004343:Drug Implants / Q000008:administration & dosage*; D005260:Female; D005548:Foreign-Body Migration / Q000000981:diagnostic imaging*; D006801:Humans; D010173:Palpation; D040521:Subcutaneous Tissue; D014463:Ultrasonography; D055815:Young Adult
chemical_list: D003271:Contraceptive Agents, Female; D004343:Drug Implants