a cystic tumor (usually benign) with a wall lined with epithelium and a cavity containing other material
双语例句
This may represent an epidermoid cyst. 这可能代表一表皮样囊肿。
We initially diagnosed it as a saccular hemangioma, but it was finally diagnosed as an epidermoid cyst with foreign body reaction from the surgical specimen. 起初诊断为囊状血管瘤，但手术后病理检查结果为表皮样囊肿合并破裂及异物反应。
