**Question:** Surgeon excise a portion of liver to the left of the attachment of the falciform ligament. The segments that have been resected are:

**Core Concept:** The liver is divided into anatomical segments based on the portal vein and hepatic artery distribution. The falciform ligament marks the inferior border of segment 4.

**Why the Correct Answer is Right:** The surgeon is excising liver tissue to the left of the falciform ligament. The falciform ligament is a landmark that indicates the inferior border of segment 4. To the left of the falciform ligament, the liver is divided into segments 2, 3, 4A, and 4B.

**Why Each Wrong Option is Incorrect:**

A. This option is incorrect because the surgeon is excising liver tissue to the left of the falciform ligament, indicating segments 2, 3, 4A, and 4B.
B. This option is incorrect because the surgeon is excising liver tissue to the left of the falciform ligament, indicating segments 2, 3, 4A, and 4B.
C. This option is incorrect because the surgeon is excising liver tissue to the left of the falciform ligament, indicating segments 2, 3, 4A, and 4B.
D. This option is incorrect because the surgeon is excising liver tissue to the left of the falciform ligament, indicating segments 2, 3, 4A, and 4B.

**Clinical Pearl:** Understanding liver segment anatomy is crucial for surgeons and liver specialists, as it helps in guiding surgical procedures and minimizing complications.

**Correct Answer:** D. The correct answer is "D" because the surgeon is excising liver tissue to the left of the falciform ligament, indicating segments 2, 3, 4A, and 4B. These segments are the ones that would have been resected in this scenario.