What structure should be mobilized to approach the right adrenal gland anteriorly?

To approach the right adrenal gland anteriorly, the most appropriate structure to mobilize is the hepatic flexure of the colon and the right colon. This is because the right adrenal gland is located posterior to the liver and the right kidney, and anterior access requires moving the structures in front of it.

Mobilizing the hepatic flexure provides access to the peritoneal cavity while allowing for an improved view and access to the adrenal gland without having to go through deeper tissues or organs. The right colon's mobility is significant since it can be repositioned to facilitate an operative approach to the glands.

In contrast, while structures like the stomach or the duodenum may be involved in surgical approaches to other areas of the abdomen, they are not ideal for approaching the right adrenal gland specifically. The ascending colon, while adjacent to the adrenal gland, does not offer the same degree of access and mobilization advantages as the hepatic flexure and right colon. Hence, focusing on the hepatic flexure and right colon enables a more efficient and safer surgical technique when dealing with the right adrenal gland.