Which of the following segments are not removed in right hepatectomy

**Core Concept**
Right hepatectomy is a surgical procedure that involves the removal of the right lobe of the liver. This procedure is typically performed to treat liver cancer, cirrhosis, or other liver diseases that affect the right lobe. The liver is divided into two main lobes: the right and left lobes, which are further divided into segments.

**Why the Correct Answer is Right**
During a right hepatectomy, segments IVB, V, VI, VII, and VIII are typically removed. This is because these segments are part of the right lobe of the liver. **Segment IVB** is a small portion of the left lobe that is sometimes removed during a right hepatectomy, but it's not always necessary. **Segments V, VI, VII, and VIII** are all part of the right lobe and are typically removed during this procedure.

**Why Each Wrong Option is Incorrect**
* **Option A:** Segment IVB is often removed during a right hepatectomy, but it's not always necessary. However, it's not the only segment that's not removed.
* **Option B:** Segment I is not removed during a right hepatectomy because it's part of the left lobe of the liver.
* **Option C:** Segment III is not removed during a right hepatectomy because it's part of the left lobe of the liver.
* **Option D:** Segment II is not removed during a right hepatectomy because it's part of the left lobe of the liver.

**Clinical Pearl / High-Yield Fact**
When performing a right hepatectomy, the surgeon must carefully identify and remove the correct segments to avoid damaging the bile ducts and hepatic veins. A thorough understanding of liver anatomy is crucial for successful surgery.

**Correct Answer: B. Segment I**