Clinical review and literature analysis of hepatic epithelioid angiomyolipoma in alcoholic cirrhosis: A case report

Figure 1 Abdominal computed tomography. A low-density nodular lesion near the parietal diaphragm of the left inner lobe of the liver, which was significantly enhanced in the arteriovenous phase of the enhanced scanning, and decreased in the delayed phase, lower than the surrounding liver tissue (the arrow shows the lesion). A: Plain computed tomography scan; B: The arterial phase of the enhanced scan; C: The portal vein phase; D: Delayed phase.

Figure 2 Computed tomography of the upper abdomen before the operation. Round low-density foci can be seen in the liver II segment with clear boundaries, enhanced foci can be seen in the arterial phase, significantly enhanced foci can be seen in the portal vein phase, and density in the equilibrium phase is lower than normal liver parenchyma (the arrow shows the lesion). A: Plain computed tomography scan; B: The arterial phase of the enhanced scan; C: The portal vein phase; D: Delayed phase.

Figure 3 Magnetic resonance imaging of the upper abdomen before the operation. A sharp focus of abnormal signals was observed near the roof of the diaphragm of the left lobe of the liver, with a low signal in T1-weighted imaging (T1WI), a slightly high signal in T2-weighted imaging (T2WI), a high signal in diffusion-weighted imaging (DWI), and an increased in the apparent diffusion coefficient (ADC) value.The inproved scan showed obvious enhancement in the arterial phase, and slightly decreased local enhancement in the later period (the arrow shows the lesion). A: T1WI; B: T2WI; C: DWI; D: ADC; E: The arterial phase of the enhanced scan; F: The portal vein phase; G: Delayed phase.

Figure 4 Gross specimen after operation. The tumor capsule was complete, the cut surface was reddish brown.

Figure 5 Postoperative pathology. A: Tumor cells showed nest-like distribution, clear boundary with liver tissue, rich blood vessels interstroma, scattered lymphocyte and plasma cell infiltration, multinucleated giant cell reaction, and local nuclear red cells (hematoxylin and eosin staining, × 20); B: The tumor cells were round or oval, with large cell bodies, eosinophilic cytoplasm, large nuclei, and distinct nucleoli. Some tumor cells are fusiform and mitotic (hematoxylin and eosin staining, × 100); C: Melanoma marker monoclonal antibody (HMB45) (+) l (immunohistochemical staining, × 100); D: Smooth muscle cell markers (+) (immunohistochemical staining, × 100).