Calot Triangle and Biliary Tree

A 52-year-old woman undergoes laparoscopic cholecystectomy for symptomatic cholelithiasis. During dissection of Calot's triangle, the surgeon identifies a small arterial branch arising from the right hepatic artery and crossing anterior to the cystic duct. Which feature best distinguishes this as the cystic artery rather than an aberrant right hepatic artery branch?

A 48-year-old man presents with acute right upper quadrant pain and fever (38.5°C). Ultrasound shows a distended gallbladder with a 2 cm stone impacted in the Hartmann pouch and pericholecystic fluid. Murphy's sign is positive. Laboratory tests reveal WBC 14,000/μL and mildly elevated liver enzymes. The patient is hemodynamically stable. What is the most appropriate immediate management?

Which anatomical feature best distinguishes the cystic artery from the cystic vein during dissection of Calot's triangle?

The Calot triangle is bounded by three structures. Which of the following is NOT a boundary of the Calot triangle?

A 52-year-old woman from Delhi presents with acute right upper quadrant pain and fever (38.5°C) for 6 hours. She has a history of recurrent biliary colic over the past 2 years. On examination, Murphy's sign is positive. Ultrasound abdomen shows a 1.8 cm stone in the gallbladder fundus with thickened wall and pericholecystic fluid. During emergency laparoscopic cholecystectomy, the surgeon encounters significant inflammation in the hepatocystic triangle with obscured anatomy and dense adhesions. Which anatomical structure is at highest risk of iatrogenic injury in this scenario?