Ectopic adrenal gland in the liver leading to a misdiagnosis of hepatocellular carcinoma: A case report

Figure 1 Computed tomography imaging. A nodular hypodense lesion was observed in segment 7 of the liver, approximately 12 mm in diameter, with well-defined borders. The lesion indicated significant heterogeneous enhancement in the arterial phase, mild attenuation in the portal phase, and marked attenuation in the delayed phase.

Figure 2 Abdominal enhanced magnetic resonance imaging. A-J: A nodular lesion with slightly prolonged T1 and T2 signals was identified in segment 7 of the liver. The lesion exhibited well-defined borders and measured approximately 12 mm in diameter. Early-phase and portal-phase imaging indicated peripheral enhancement, which decreased in the delayed phase. In the 5-minute/10-minute/15-minute/20-minute post-contrast hepatobiliary phase (F-I), the lesion exhibited no contrast uptake. The lesion demonstrated slightly high signal intensity on diffusion-weighted imaging (J) and low signal intensity on the apparent diffusion coefficient map.

Figure 3 Tumor pathology. A and B: Surgical specimen (A) and hematoxylin and eosin staining, × 5.23 (B).