Spontaneous rupture of hepatic metastasis from a thymoma: A case report

Figure 1 Computed tomography images. A mass (maximum diameter, 45 mm; white arrow) is seen anterior to the ascending thoracic aorta. Histological analysis later identified the mass as a thymoma.

Figure 2 Histological analysis of the mediastinal thymoma. A: A stained section of the mediastinal thymoma (hematoxylin-eosin staining, magnification × 40); B: The type A component is composed primarily of fibroblast-like spindle cells (hematoxylin-eosin staining, magnification × 100).

Figure 3 Enhanced computed tomography images. A: Large hemoperitoneum is seen around the liver; B: A 10-cm encapsulated mass is seen in S5 and S8 of the liver, and hemoperitoneum is seen around the spleen; C: A 2.3-cm nodular lesion is seen in the right upper quadrant of the abdomen adjacent to the left transverse abdominal muscle (white arrow); D: Coronal view of the large hemoperitoneum with a liver mass.

Figure 4 Angiography images. A: Digital subtraction angiography shows a large ruptured hypervascular tumor with staining at the right hepatic lobe during transarterial embolization; B: Active contrast leakage (white arrow) is seen; C: Selection of the right hepatic artery with a mixture of adriamycin (50 mg) and lipiodol (20 mL). The tumor staining disappears after transarterial embolization.

Figure 5 Histopathological analysis of the abdominal wall mass. The tumor is composed of fibroblast-like spindle cells (thymoma type A, metastatic).