Incidental Ectopic Gallbladder Mimicking an Epigastric Cyst

偶然发现的异位胆囊,酷似上腹部囊肿

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Abstract

Ectopic gallbladder is a rare congenital anomaly with important clinical and surgical implications. Although it is normally situated on the undersurface of the right hepatic lobe, it can occasionally be found in unusual locations such as intrahepatic, left-sided, within the lesser omentum, retroperitoneal, falciform ligament, or anterior abdominal wall. We describe the case of a 60-year-old male from Somaliland who presented with rectal bleeding attributed to hemorrhoids, during which an incidental ectopic gallbladder was identified. Initial ultrasound suggested an epigastric cyst between the left hepatic lobe and the lesser curvature of the stomach, with no associated hepatobiliary pathology. Subsequent contrast-enhanced computed tomography confirmed the presence of an ectopic gallbladder located in the left subhepatic space. Accurate recognition of this rare anomaly on imaging is essential to prevent misdiagnosis and to ensure appropriate surgical planning. This case underscores the pivotal role of radiologists in identifying gallbladder anatomical variations with potential clinical and management significance.

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