Figure 4. (A) Macroscopic finding of the tumor. A cystic area measuring approximately 8 mm was observed. (B) Histopathological findings of the cystic area (HE, ×20). (C) The cyst wall (✶) was covered by foamy histiocytes and lymphocytic infiltration, including calcification and hemosiderin-laden macrophages (HE, ×100). (D) Only necrotic tissue and foamy histiocytes were observed inside the cyst (✱). No tumor cells were detected in the resected specimen (HE, ×100). HE, hematoxylin and eosin.