case_images: PMC4531752_01
case_images: Chest CT scan. It shows 3x4x5 cm-sized low-attenuated homogenous oval shaped mass with sharp margin at the anterior mediastinum. It is diagnosed as thymoma radiologically.
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case_images: PMC4531752_01_kjim-15-2-151-11f1.jpg
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case_images: The mass was diagnosed as thymoma, radiologically (Figure 1).
case_images: Histopathology of the liver. It shows distorted lobular architecture and widening of portal tracts by chronic inflammatory cell infiltration with foci of piecemeal necrosis and fibrosis (H&E, x200).
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case_images: Thus it was diagnosed as chronic active hepatitis (Figure 2).
case_images: Histopathology of the thymus. It shows well-defined tumor tissue composed of solid sheets of thymic epithelial cells and scanty amount of lymphoid cells with frequent cystic change. A few Hassal's corpuscles are seen. The surrounding thymic tissue shows follicular hyperplasia (H&E, x200).
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case_images: Histology confirmed that the thymoma was encapsulated, non-invasive and mixed type (Figure 3).