PMC9476318_01
Ct images of axial sections: (A) A bulky hypodense mass in segment V of the liver indicates the lesion; arterial phase (B) shown enhancement of peripheral areas and slight progressive centripetal enhancement in portal phase (C); three-dimensional reconstruction of the liver mass in segment V (43 mm x 52 mm-sized) (D).
fsurg-09-963952-g001.jpg
PMC9476318_01_fsurg-09-963952-g001.jpg
F1
A 43 mm x 52 mm-sized hypodense liver mass was observed in segment V based on contrasted computed tomography (CT) scans, with progressive peripheral enhancement during the arterial phase and a rapid wash-out during portal and late phases (Figure 1).
Contrasted MRI images of the liver: (A) an abnormal signal liver mass in segment V and obvious restricted diffusion on DWI; (B) a hypointense signal and a slightly hyperintense one on T1- and T2-weighted scans respectively; (C) patchy peripheral enhancement in the arterial phase, and (D) rapid washout in the portal and late phases.
fsurg-09-963952-g002.jpg
PMC9476318_01_fsurg-09-963952-g002.jpg
F2
Additionally, obvious diffusion restriction was observed on diffusion weighted imaging (DWI) along with a hypointense signal in apparent diffusion coefficient (ADC) mapping, with patchy peripheral enhancement during the arterial phase and a rapid wash-out during the portal and late phases (Figure 2).
Histologic findings (hematoxylin and eosin staining, 40 x ): primary high-grade malignant tumor with patchy necrosis and abundant lymphocyte infiltration. Cancer infiltration was not observed in nerves, in vessels or at the margin of hepatectomy.
fsurg-09-963952-g003.jpg
PMC9476318_01_fsurg-09-963952-g003.jpg
F3
The absence of cancer infiltration in nerves, in vessels or at the margin of hepatectomy was also noted (Figure 3).