Oncocytic MEC (OMEC) has been rarely reported with previous cases suggesting they are largely cystic low-grade neoplasms with a favorable prognosis.

• 有关嗜酸细胞性MEC（OMEC）的报道很少，此前报道的病例提示这是一种病变主要呈囊性的低度恶性肿瘤，并且预后良好。