Fig. 8

Mucinous metastasis containing fibrosis in a 47-year-old female patient. Portal venous phase contrast-enhanced CT image (a) shows a polylobubated well-delineated hypo-attenuating 70 mm tumor (arrow) in the right liver lobe. Note the presence of subtle inner enhancing septa. The lesion is bright on fast spin echo T2-weighted image (b) and contains inner hypointense septa (arrow). The gadobenate dimeglumine-enhanced fat-saturated gradient recall echo T1-weighted image obtained during the delayed phase (3 min) (c) shows enhancement of central fibrous septa (arrow). Gross pathology (d) and histology (e) show mucin pools (T) crossed with thick fibrous bands (black arrows). The lesion is well-separated from the liver (Li), consistent with a pushing growth pattern