This study shows that robotic-modified Taj Mahal hepatectomy is a safe alternative for selected patients with type IV hilar cholangiocarcinoma, minimizing morbidity.

• Operative time was 560 minutes with only 300 ml blood loss.
• The postoperative course was smooth, with discharge on day 8 and no complications.

This technique allows for a parenchyma-preserving approach, with one patient remaining disease-free at 11 months follow-up.

• Histopathology confirmed negative margins and 14 tumor-free lymph nodes.