When colorectal cancer presents with liver metastasis, hepatic resection remains the most important factor in prolonging survival, and new paradigms have been proposed to augment resectability. An adequate liver remnant and vascularisation are the only limits in complex liver resection, and parenchyma-sparing surgery is a strategy for minimising the complications, preserving liver function, and allowing patients to undergo further liver resection. The laparoscopic approach represents a new challenge, especially when lesions are located in the superior or posterior part of the liver. We discuss the case of an 81-year-old patient with a single synchronous liver metastasis involving the left hepatic vein and leaning into the middle hepatic vein at the common trunk, where we performed a simultaneous laparoscopic colonic resection with a left sectionectomy extended to segment 4a. The strategic approach to the Arantius ligament by joining the left and middle hepatic vein allowed us to avoid a major liver hepatectomy, preserve the liver parenchyma, reduce complications, enhance patient recovery, and perform the entire procedure by laparoscopy. Our example suggests that the Arantius approach to the left hepatic vein and the common trunk could be a feasible approach to consider in laparoscopic surgery for lesions located in their proximity.

The obturator hernia is a rare pelvic hernia that often presents with symptoms of bowel obstruction. Obturator hernia corresponds to 0.5–1.4% of all abdominal hernias. Entrapment of an intestinal segment within the obturator orifice, most often the ileum, less frequently Meckel’s diverticulum or omentum, can cause intestinal obstruction. The non-specific presenting symptoms make the diagnosis of this condition often unclear. Females are 6–9 times more likely than men to be subject to the pathology, mostly occurring in a multiparous, emaciated, elderly woman so it is also called “the little old lady’s hernia.” Risk factors such as chronic constipation, chronic obstructive pulmonary disease, ascites, kyphoscoliosis, and multiparty, can predispose patients to herniation. A sign of inconstant presentation may be the presence of a palpable mass or pain radiating from the inner thigh and knee—known as Howship–Romberg sign—but it could be misleading when confused with symptoms of gonarthrosis or lumbar vertebral disc pathology. CT scan of the abdomen and pelvis has been found to be the gold standard for preoperative diagnosis because of its superior sensitivity and accuracy with respect to other radiological exams. The only possible treatment for this pathology is surgery, and management depends on early diagnosis.