Most metastatic deposits are solid and mainly hypoechoic relative to the background liver (Fig. 4). Many will exhibit a hypoechoic "halo" (Fig. 5). There is some controversy as to whether the halo ...

Here, we report that TRAIL is constitutively expressed on murine natural killer (NK) cells in the liver and plays a substantial role in suppressing tumor metastasis. Freshly isolated NK cells ...