An uncommon case of right hepatic duct entering cystic duct associated to multiple complications of biliary tract disease: acute pancreatitis, hepatolithiasis, acute cholecystitis and hepatic abscess.

Anatomical variations of the biliary tree pose diagnostic and treatment challenges. While most are harmless and often discovered incidentally during procedures, some can lead to clinical issues and biliary complications, making knowledge of these variants crucial to prevent surgical mishaps. Here, we present an unusual and clinically significant case. A 61-year-old man is admitted to the hospital with epigastric pain and diagnosis of pancreatitis of biliary origin and intermediate risk of choledocholithiasis. Magnetic resonance cholangiopancreatography (MRCP) reported hepatolithiasis and choledocholithiasis, whereas endoscopic retrograde cholangiopancreatography showed cystic drain of the right hepatic duct. One month later the patient presented again to the emergency room with increasing abdominal pain and a computed tomography that demonstrated the presence of hepatic abscess and acute cholecystitis. The patient underwent percutaneous drain abscess and a subtotal laparoscopic cholecystectomy. Biliary anatomical variants present challenges on the diagnostic investigations, interventional and surgical procedures, understanding the possible complications is essential.

Hipoplasia del lóbulo hepático izquierdo asintomático, hallazgo transquirúrgico, tomográfico y patológico. Presentación de una rara entidad / Asymptomatic Hypoplasia of the Left Hepatic Lobe: Surgical Tomographic and Pathological Findings. Presentation of a Rare Entity

Resumen Antecedentes Las anomalías de la morfología hepática son raras, y se dividen en 2 categorías: las que resultan del desarrollo excesivo de tejido hepático, como el lóbulo de Riedel y otros lóbulos accesorios, y las de desarrollo deficiente del hígado, que incluyen agenesia, hipoplasia y aplasia de los lóbulos hepáticos. Presentación del caso Paciente del sexo masculino de 57 años de edad, sometido a plastia inguinal laparoscópica programada, donde se dio el hallazgo de hipoplasia hepática. Conclusión La hipoplasia hepática es poco frecuente, no presenta síntomas, ni repercusiones clínicas a largo plazo, suele ser un hallazgo incidental durante un estudio de imagen o durante un procedimiento quirúrgico abdominal.

Abstract Background: Abnormalities of liver morphology are rare, divided into two categories: those resulting from overgrowth of liver tissue, such as the Riedel lobe and other accessory lobes, and those with poor liver development include agenesis, hypoplasia and aplasia of the hepatic lobes. Presentation of the case 57-year-old man, subjected to laparoscopic programmed inguinal surgery, finding liver hypoplasia. Conclusions Hepatic hypoplasia is rare, has no symptoms or long-term clinical repercussions, is usually an incidental finding during an imaging study or during an abdominal surgical procedure.