Utilizando a classificação dos cistos congênitos de colédoco, imagens de vários tipos de cistos foram selecionadas para compor um ensaio iconográfico sobre esta doença pouco frequente na prática clínica, mas que faz parte do diagnóstico diferencial das lesões mais comuns da via biliar. Os cistos de colédoco possuem clínica inespecífica e baixa prevalência. O diagnóstico correto por meio dos exames de imagem é uma ferramenta importante para evitar as complicações e auxiliar na conduta e tratamento definitivo.
Choledochal cysts are rare congenital anomalies of the biliary tract characterized by dilation of the biliary tree. Most cases are diagnosed during the first decade of life, whereas only 20% are diagnosed in adulthood. They present as a classic trio: abdominal pain, jaundice, and a tangible mass. The mass is identified in just one-third of the cases. This case presents a patient with the trio, with a painful palpable mass of 15 cm in the epigastrium and right hypochondrium. Sonography and computed tomography were performed initially and suggested that this was a case of a hepatic cyst. However, magnetic resonance cholangiography was decisive in diagnosing this as a case of giant choledochal cyst (Todani I), which was confirmed by anatomopathology.
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