Purnell Phillip R, Interval Erik, Williams H James, Cassis Adam
West Virginia University, Department of Otolaryngology-Head and Neck Surgery, Morgantown, WV 26505, USA.
Alleghany Health Network, Department of Otolaryngology, Pittsburg, PA 15224, USA.
J Surg Case Rep. 2019 Apr 27;2019(4):rjz129. doi: 10.1093/jscr/rjz129. eCollection 2019 Apr.
A 6-year-old male was seen for evaluation of middle ear polyp with associated hearing loss and otorrhea. CT scan revealed canal polyp with a stalk extending to the middle ear with malformation of the malleus and incus. The patient underwent exploratory tympanotomy which revealed a fistula from the bony-cartilaginous junction connecting to a middle ear mass which had eroded the incus. Intraoperative pathology suggested columnar epithelium without cholesteatoma or muscle. Final pathologic diagnosis reported dense fibrous tissue as well as ectopic salivary gland tissue, consistent with salivary gland choristoma. After removal of the mass, a partial prosthesis was successfully placed. Middle ear salivary gland choristoma is a rare entity. It can be confused clinically with cholesteatoma and is usually diagnosed on pathology. This diagnosis is often associated with other external, middle, and inner ear abnormalities.
一名6岁男性因中耳息肉伴听力损失和耳漏前来评估。CT扫描显示耳道息肉，其蒂延伸至中耳，锤骨和砧骨畸形。患者接受了探查性鼓室切开术，术中发现一个瘘管，从骨软骨交界处连接到一个侵蚀了砧骨的中耳肿物。术中病理提示为柱状上皮，无胆脂瘤或肌肉组织。最终病理诊断报告为致密纤维组织以及异位唾液腺组织，符合唾液腺迷离瘤。肿物切除后，成功置入了部分假体。中耳唾液腺迷离瘤是一种罕见的疾病。临床上它可能与胆脂瘤相混淆，通常通过病理诊断。该诊断常与其他外耳、中耳和内耳异常相关。
