Hepatic angiomyolipoma: Dynamic computed tomography features and clinical correlation

Figure 1 Patient with sporadic hepatic angiomyolipoma. A: Enhanced CT showed one well-defined, fat-containing nodule with prominent central vessels in the arterial phase; B: Enhanced CT showed sustained contrast enhancement of the intratumoral non-fat component in the portal venous phase.

Figure 2 Patient with hepatic angiomyolipoma and TSC. A: Plain CT showed two fat-containing nodules in the right liver lobe, and one unenveloped fat-deficient nodule in the left liver lobe; B: Enhanced CT showed a fat-deficient nodule with marked hyperdensity, with intratumoral vessels in the arterial phase; C: Enhanced CT showed a fat-deficient nodule with mild hypodensity, with prominent central vessels in the portal venous phase; D: Enhanced CT showed a fat-deficient nodule with homogeneous hypodensity in the delayed phase; E: Microscopic examination demonstrated vacuolated lipocytes, blood vessels and scattered epithelioid cells with eosinophilic cytoplasm and peripherally located nuclei (HE, original magnification × 40).

Figure 3 Patient with TSC and hepatic angiomyolipoma and LAM. A: Enhanced CT showed multiple fat-containing nodules in the liver; B: Enhanced CT showed an intra-portal-venous lesion and several enlarged periaortic lymph nodes; C: Chest CT showed multiple, thin-walled lung cysts and right hydrothorax.