The pelvis of the gallbladder, also known as the infundibulum, represents an important anatomical structure within the biliary system. This region serves as the neck or funnel-shaped portion of the gallbladder, connecting it to the cystic duct. Synonyms for the pelvis of the gallbladder can include the gallbladder infundibulum, cystic neck, or simply the neck of the gallbladder. These terms describe the same anatomical feature, capturing its role in directing bile flow from the gallbladder into the bile ducts. Familiarity with these synonyms is crucial for medical professionals to effectively communicate and understand the functioning and pathologies of this essential biliary component.