Case 345:   Metastasis - Cholangiocarcinoma

Diagnostic Category:

Clinical Presentation:

32 year old man with right upper quadrant pain and abnormal LFT's.

US: Target appearance

Imaging Findings:

Ultrasound shows a classic target sign appearance of this metastasis with a large cystic/necrotic central component. Note perifocal edema, which is typical for metastases, but not well seen on the CT and MR of this patient. Color Doppler demonstrates mild peri-lesional flow.