Nishimura Nao Yamamoto, Usuki Takasuke, Seki Soju, Nishio Takahiro, Ishibashi Miki, Hamaguchi Munehiro
Department of Oral and Maxillofacial Surgery, Yao Municipal Hospital, 1-3-1, Ryugecho, Yao-city, Oaka 581-0069, Japan.
Department of Cancer Oral Care, Dentistry and Oral Maxillofacial Surgery, Osaka International Cancer Institute, 3-1-69, Ohtemae, Chuo-ku, Osaka 541-8567, Japan.
J Surg Case Rep. 2024 Dec 17;2024(12):rjae791. doi: 10.1093/jscr/rjae791. eCollection 2024 Dec.
Ganglions are pseudocysts that develop from part of the joint capsule or tendon sheath and are filled with synovial fluid. In this report, we describe a case of external auditory canal obstruction caused by a temporomandibular joint (TMJ) ganglion that was thought to be related to osteoarthritis. A 62-year-old man with the chief complaint of swelling of the anterior wall of the left external auditory canal underwent cystectomy at the Department of Otorhinolaryngology. Histopathological examination revealed a ganglion. Three months later, the swelling reappeared; computed tomography revealed an enlarged left temporomandibular head, which prompted the patient to visit our department. Subsequently, the ear canal was completely obstructed due to worsened swelling, and TMJ arthroplasty and ear canalplasty were performed. Postoperatively, the patient recovered well with no recurrence of swelling. Ganglions that arise as masses in the external auditory canal may be accompanied by osteoarthritis.
腱鞘囊肿是由关节囊或腱鞘的一部分形成的假性囊肿,内充满滑液。在本报告中,我们描述了一例由颞下颌关节(TMJ)腱鞘囊肿引起的外耳道阻塞病例,该囊肿被认为与骨关节炎有关。一名62岁男性,以左外耳道前壁肿胀为主诉,在耳鼻喉科接受了囊肿切除术。组织病理学检查显示为腱鞘囊肿。三个月后,肿胀再次出现;计算机断层扫描显示左颞下颌头增大,促使患者前来我院就诊。随后,由于肿胀加重,耳道完全阻塞,遂进行了颞下颌关节置换术和耳道成形术。术后,患者恢复良好,肿胀未复发。外耳道出现肿物的腱鞘囊肿可能伴有骨关节炎。