CT Abdomen Gallbladder Normal Vs Acute Cholecystitis | Gallstones, Wall Thickness & Gangrenous Cases скачать в хорошем качестве

CT Abdomen Gallbladder Normal Vs Acute Cholecystitis | Gallstones, Wall Thickness & Gangrenous Cases

Support the channel on Patreon: patreon.com/drsamsimaginglibrary CT Abdomen Gallbladder Normal Vs Acute Cholecystitis | Gallstones, Wall Thickness & Gangrenous Cases Normal Gallbladder: Length: Usually ≤10 cm. Width: Usually ≤4 cm. Wall Thickness: ≤3 mm The lumen is fluid-filled, appearing as a low-attenuation (dark) area on CT. The lumen is fluid-filled, appearing as a low-attenuation (dark) area on CT. The gallbladder wall may show mild, uniform enhancement. No focal hyperenhancing areas or defects should be present. Pericholecystic fat (fat around the gallbladder) should have normal attenuation without stranding or fluid accumulation (appear dark grey). Acute Cholecystitis Enlarged gallbladder, usually greater than 4 cm in diameter or greater than 10 cm in length. Presence of hyperdense gallstones Increased wall thickening (greater than 3 mm) Mucosal Hyperenhancement: Enhanced mucosa on contrast-enhanced CT, indicating inflammation. Pericholecystic Fat Stranding: Increased density of surrounding fat due to inflammation). Increased density of the liver adjacent to the gallbladder due to inflammation Tensile Gallbladder Fundus Sign Early sign of acute cholecystitis on CT Usually presents before other features of cholecystitis such as increased wall thickness, pericholecystic fat stranding or mucosal hyperenhancement Bulging of gallbladder fundus into anterior abdominal wall and distorting it Gallbladder fundus presses against transversus abdominis muscle Distended gallbladder Gangrenous Cholecystitis Distended gallbladder Wall irregularity & disruption Intraluminal membrane Fat stranding No wall enhancement indicates gangrenous cholecystitis (wall hyperenhancement is present in acute cholecystitis) Very low density air bubbles within or outside the gallbladder (emphysematous cholecystitis)