**Question:** All are anterior relations of Right kidney EXCEPT

A. The first part of the superior mesenteric artery (SMA)
B. The first part of the superior mesenteric vein (SMV)
C. The superior mesenteric artery (SMA)
D. The inferior vena cava (IVC)

**Core Concept:** Anterior relations of the right kidney refer to the structures located in front of the kidney. These include the renal artery, vein, and ureter that pass through or around the kidney, as well as other nearby structures.

**Why the Correct Answer is Right:** The correct answer is **D.** The inferior vena cava (IVC) is posterior to the right kidney, not anterior. The IVC is the main vein that returns deoxygenated blood from the lower body to the heart. The other options are all anterior relations of the right kidney:

**A.** The first part of the superior mesenteric artery (SMA) is the first branch of the abdominal aorta that supplies blood to the small intestine and surrounding structures. It is indeed an anterior relation of the right kidney.

**B.** The first part of the superior mesenteric vein (SMV) is another branch of the aorta, draining blood from the small intestine and surrounding structures. Like option A, it is an anterior relation of the right kidney.

**C.** The superior mesenteric artery (SMA) is another branch of the abdominal aorta that supplies blood to the small intestine and surrounding structures, but it is also an anterior relation of the right kidney.

**Why Each Wrong Option is Incorrect:** All options (A, B, and C) are incorrect because they represent anterior relations of the right kidney, which contradicts the given condition (right kidney).

**Clinical Pearl:** Understanding the anterior and posterior relations of the abdominal organs is crucial for safe and effective surgical procedures. Misidentifying the anterior relations could lead to complications like vascular injury during laparoscopic or open surgeries involving the right kidney, small intestine, or surrounding structures.

**Correct Answer:** **D.** The inferior vena cava (IVC) is the correct answer as it is the posterior relation of the right kidney. The IVC is located posterior to the right kidney, ensuring the correct identification of anterior relations of the right kidney helps prevent complications during surgical procedures.