Psillas G, Guyot J-P
Service d'otorhinolaryngologie et de chirurgie cervicofaciale, hôpital universitaire de Thessalonique, 1, rue Stilponos-Kyriakidi, 54006 Thessalonique, Greece.
Ann Otolaryngol Chir Cervicofac. 2007 Dec;124(6):305-8. doi: 10.1016/j.aorl.2007.03.005.
We report a rare case of spontaneous temporomandibular joint herniation into the external auditory canal.
A 42-year-old woman consulted for recurrent right otalgia.
The clinical examination revealed a white mass of the anterior wall of the bony external auditory canal, very close to the tympanic annulus, which was replaced by an invagination of the skin of the canal when the patient opened her mouth, consistent with temporomandibular joint herniation into the external auditory canal.
Inflammatory, malignant, and traumatic lesions are known as potential causes of temporomandibular joint herniation into the external auditory canal. Spontaneous herniations are much rare, and to the best of our knowledge this is the 15th case reported in the literature. This anomaly results from a patent foramen of Huschke. Main symptoms consist in otalgia and tinnitus. In half of the cases, they are minor and no treatment is necessary.
我们报告一例罕见的颞下颌关节自发性疝入外耳道的病例。
一名42岁女性因反复出现右耳疼痛前来就诊。
临床检查发现骨性外耳道前壁有一白色肿物，非常靠近鼓膜环，当患者张口时，该肿物被外耳道皮肤内陷所取代，符合颞下颌关节疝入外耳道。
炎症、恶性肿瘤和创伤性病变是颞下颌关节疝入外耳道的潜在原因。自发性疝非常罕见，据我们所知，这是文献报道的第15例。这种异常是由胡施克孔未闭引起的。主要症状为耳痛和耳鸣。在一半的病例中，症状较轻，无需治疗。
