Fig. 17. Recent surgery-related fluid collections.

A, B. A 76-year-old woman presented with persistent right upper quadrant abdominal pain after cholecystectomy 1 week previously. Grayscale ultrasonography (A) shows a fluid collection with internal debris in the gallbladder fossa (arrows). Cholescintigraphy scan (B) shows increased activity (arrow) in the gallbladder fossa, consistent with a biloma, which was confirmed via drainage. C. A 45-year-old woman presented with abdominal pain and fatigue 1 week after cholecystectomy. Grayscale ultrasonography shows a large, hypoechoic, heterogeneous collection (dashed arrows) along the right lobe of the liver, consistent with a hematoma. D. A 63-year-old woman presented with abdominal pain, fever, and abnormal liver function tests 4 weeks after transplantation. Grayscale ultrasonography reveals a predominantly anechoic collection (open arrows) with thick septations medial to the left liver lobe. This collection was drained, and it was consistent with an infected biloma/abscess.