Management of Distended Gallbladder on Ultrasound

Initial Clinical Assessment

The American College of Emergency Physicians recommends checking for sonographic Murphy's sign, which is probe-induced tenderness directly over the gallbladder that reproduces the patient's pain, to assess for signs of cholecystitis 1
The American College of Emergency Physicians suggests measuring gallbladder wall thickness, which is abnormal if >3mm on the anterior wall, to evaluate for cholecystitis 1
The World Journal of Emergency Surgery recommends looking for pericholecystic fluid, which appears as hypo- or anechoic regions suggesting acute inflammation, to assess for cholecystitis 1, 2
The World Journal of Emergency Surgery suggests identifying gallstones, particularly stones impacted in the cystic duct, to evaluate for cholecystitis 2, 3
The American College of Emergency Physicians recommends assessing transverse diameter, with distention >5cm may indicate cholecystitis 1

The World Journal of Emergency Surgery states that clinical correlation is essential, and evaluates for right upper quadrant pain, fever, and physical Murphy's sign to assess for cholecystitis 2, 3, 4

The World Journal of Emergency Surgery recommends proceeding with early cholecystectomy within 7-10 days of symptom onset for confirmed cholecystitis, with laparoscopic cholecystectomy as the preferred approach 2, 3, 4
The World Journal of Emergency Surgery suggests single-dose antibiotic prophylaxis at the time of surgery, and no postoperative antibiotics needed if source control is adequate 2, 3, 4
The World Journal of Emergency Surgery recommends antibiotic therapy for no more than 7 days with planned delayed cholecystectomy for immunocompetent patients who are not critically ill and require delayed surgery 2, 3, 4
The World Journal of Emergency Surgery suggests amoxicillin/clavulanate 2g/0.2g q8h as first-line antibiotic therapy 2, 3, 4

The World Journal of Emergency Surgery recommends optimizing ultrasound technique, including proper patient preparation with fasting, use of appropriate gain and focal zone settings, and employment of multiple acoustic windows (subcostal and intercostal) 1
The Praxis Medical Insights recommends using power Doppler or microvascular Doppler to help differentiate true pathology from artifacts 5
The Praxis Medical Insights suggests cholecystectomy for polyps ≥10mm if the patient is a surgical candidate, and a lower threshold to ≥8mm in patients with primary sclerosing cholangitis due to 18-50% malignancy risk 5, 6