The choledochal cyst is a rare disease of unknown etiology, most prevalent in childhood, however, occurs in 20% of adult patients.Also, it is associated with a hepatobiliary disease.A case of an 18year-old patient, with a recurrent abdominal pain, was diagnosed with the performance of an abdominal ultrasound and the Magnetic Resonance Image.After that, the surgical procedure was the resection of the lesion with an open technique without postoperative complications and with an adequate and definitive evolution of the clinical presentation.