Multilocular thymic cysts can be easily misdiagnosed as malignant tumor on computer tomography: A case report

Figure 1 Radiology and macroscopic pathological image. A: Chest X ray image; B: Macroscopic pathological image; C: Plain computer tomography (CT) image; D: CT image after contrast agent injection.

Figure 2 Histopathological picture of this case of multilocular thymic cyst. A: The cholesterol crystals in multilocular thymic cyst (MTC); B: Squamous epithelium and lymphoid hyperplasia; C and D: Immunohistochemistry of Ki-67 and p63 in MTC. The Ki-67 was 5% positive and p63 was positive.

Figure 3 Rechecked after 9 months and no signs of recurrence.