患者男，16岁。右耳流脓1年，伴听力下降，在当地医院拍乳突许麦氏位片，颞骨CT显示在耳正常，右乳突硬化型，蜂房含气少，乳突腔内可见一软组织影，CT增强后病灶强化，大小约1．2×1．5cm，CT值87.7Hu，印象：右乳突占位性病变，考虑为明脂瘤型中耳炎。转入我院后，检查见右鼓 Male patient, 16 years old. Right ear pus 1 year, accompanied by hearing loss, local anesthesia in the film masturbation bitter film, temporal bone CT showed normal ear, right mastoid sclerosis, honeycomb gas less, mastoid cavity can be seen a soft tissue shadow, Enhanced CT enhancement of lesions, the size of about 1.2 × 1.5cm, CT value of 87.7Hu, the impression: right mastoid occupying lesions, consider the type of liposarcoma otitis media. Into our hospital, check the right drum