Primary squamous cell carcinoma of the liver: A successful surgically treated case

Figure 1 A: Abdominal ultrasonography (US) shows a mixed echoic mass about 7. 8 cm occupying S5 of right lobe of the liver; B: Abdominal computed tomography (CT) shows a 7 cm x 9.5 cm irregular mass with nonhomogeneous density and mild delayed enhancement in the central zone of the tumor near the gallbladder, at S5 of right lobe of the liver; C: Angiography shows a large tumor with neovascularity and stretching the feeding arteries, located at S5 of right lob of the liver.

Figure 2 A: Microscopic findings of the resected liver tumor. The tumor is composed of squamous cells with keratinization (HE x 200); B: Squamous cells express strong positive CK14 staining immunohistochemically (IHC x 200); C: Squamous cells express strong positive CK10 staining immunohistochemically (IHC x 200).