Gallbladder and Cystic Duct Agenesis as an Extremely Rare Embryologic Abnormality and Misdiagnosis

Background: Gallbladder agenesis (GA) is an uncommon congenital condition defined by the absence of the gallbladder and cystic duct resulting from an anomaly in embryonic development. It is often linked with other congenital anomalies, but an isolated variant is very infrequent. Basic procedures/main findings:The clinical presentation is diverse. In fact, GA is often diagnosed incidentally. Magnetic resonance cholangiopancreatography (MRCP) is regarded as the preferred diagnostic approach, since it circumvents needless and risky surgical procedures in symptomatic patients. This report presents a case of gallbladder agenesis incidentally identified during surgery in a 29-year-old patient. Conclusions: Although GA is uncommon, clinical awareness of the disorder facilitates accurate preoperative diagnosis and thereby reduces morbidities associated with unnecessary surgical exploration.