Hepatic metastases - Color Ultrasound
Title: Color Ultrasound - Hepatic metastases
Diagnosis: Hepatic metastases
Author: Dr.ROSSET Antoine
Comment: Dr. KHAN Haleem
Chapter: Liver & Spleen
Clinical Presentation: Workup of a rectalcancer.
Comment: The liver is a classic site of metastatic lesions. Theportal vein drains
the abdominal viscera and is the conduit formetastases from many tumors (colon, rectum,
stomach, pancreas,biliary tree, lung cancer, breast cancer, lymphoma). Multiplemetastatic
lesions are frequent, but single metastatic lesion maybe seen. On ultrasound metastasis
may be hypo or hyperechoic. On CTmetastasis are heterogenous, mostly hypodense.
Some may behypervascular. Central necrosis may be seen with large lesions. OnMRI
metastasis are often hypo on T1 and hyper on T2. Centralnecrosis is hyperintense on T2.
Description: The US study shows numerous mass lesions withhypoechoic rims.
The lesions are hypodense on CT. CDFI demonstratescentral arterial pedicles within the
lesions with typical highresistance waveforms. CT guided biopsy confirms the rectal
originof the metastases.
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