Which ultrasound finding is specifically associated with biliary pathology during ultrasound examination?

Which ultrasound finding is specifically associated with biliary pathology during ultrasound examination?

• A. Sonographic Murphy sign
• B. Posterior acoustic shadowing
• C. Renal pelvis dilation
• D. Pleural effusion

Answer: (A)

The main concept is identifying a sign on ultrasound that directly points to biliary pathology, specifically gallbladder inflammation. The sonographic Murphy sign is observed when gentle compression with the ultrasound probe over the gallbladder elicits sharp tenderness or a halt in inspiration, indicating underlying gallbladder inflammation such as acute cholecystitis. This sign is tightly linked to the biliary system and becomes a practical, bedside cue that inflammation is present in the gallbladder. Posterior acoustic shadowing can occur with gallstones, but it is not specific to biliary pathology and can be seen with calcifications elsewhere as well; it shows a physical blockage or stone but does not by itself confirm active gallbladder inflammation. Renal pelvis dilation signals hydronephrosis in the urinary tract, and pleural effusion involves fluid around the lungs—neither relates to the biliary system. Therefore the sonographic Murphy sign is the best stand-alone indicator of biliary pathology on ultrasound.

The main concept is identifying a sign on ultrasound that directly points to biliary pathology, specifically gallbladder inflammation. The sonographic Murphy sign is observed when gentle compression with the ultrasound probe over the gallbladder elicits sharp tenderness or a halt in inspiration, indicating underlying gallbladder inflammation such as acute cholecystitis. This sign is tightly linked to the biliary system and becomes a practical, bedside cue that inflammation is present in the gallbladder.

Posterior acoustic shadowing can occur with gallstones, but it is not specific to biliary pathology and can be seen with calcifications elsewhere as well; it shows a physical blockage or stone but does not by itself confirm active gallbladder inflammation. Renal pelvis dilation signals hydronephrosis in the urinary tract, and pleural effusion involves fluid around the lungs—neither relates to the biliary system. Therefore the sonographic Murphy sign is the best stand-alone indicator of biliary pathology on ultrasound.