Adenoid Cystic Carcinoma of the External Auditory Canal and Temporomandibular Joint - A Case Report.

Q2 Dentistry

Annals of Maxillofacial Surgery Pub Date : 2025-07-01 Epub Date: 2026-01-14 DOI:10.4103/ams.ams_136_25

S M Balaji, Pritty Gobin, Preetha Balaji

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引用次数: 0

Abstract

Rationale: Adenoid cystic carcinoma (AdCC) of external auditory canal (EAC) is a rare malignancy. It presents significant diagnostic and surgical challenges due to complex anatomy and functional implications.

Patient concerns: A 39-year-old female presented with progressive left ear pain, hearing loss and discharge, initially treated as otitis media.

Diagnosis: Subsequent investigations confirmed AdCC of the EAC extending to the temporomandibular joint (TMJ).

Treatment: The patient underwent wide local excision of the EAC AdCC lesion, including a superficial parotidectomy and partial TMJ tissue removal, guided by frozen section analysis. Final histopathology confirmed clear surgical margins across all 26 evaluated samples.

Outcome: Post-operative recovery was uneventful with no residual disease or metastasis by 6 months. The patient reported mild trismus with preserved jaw function.

Take-away lessons: Early diagnosis and multidisciplinary management are critical for EAC AdCC with TMJ involvement. Meticulous surgical planning, clear resection margins and vigilant follow-up are crucial for optimal outcomes.

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外耳道及颞下颌关节腺样囊性癌1例报告。

理由：外耳道腺样囊性癌是一种罕见的恶性肿瘤。由于复杂的解剖和功能影响，它提出了重大的诊断和手术挑战。患者关注：一名39岁女性，表现为进行性左耳疼痛，听力丧失和分泌物，最初治疗为中耳炎。诊断：随后的调查证实EAC的AdCC延伸到颞下颌关节（TMJ）。治疗：在冷冻切片分析的指导下，患者接受了EAC AdCC病变的广泛局部切除术，包括腮腺浅表切除术和部分TMJ组织切除术。最终的组织病理学证实所有26个评估样本的手术边缘清晰。结果：术后恢复顺利，6个月无疾病残留或转移。患者报告轻度牙关，颌骨功能保留。结论：早期诊断和多学科管理对累及颞下颌关节的EAC AdCC至关重要。细致的手术计划，明确的切除边缘和警惕的随访是获得最佳结果的关键。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Annals of Maxillofacial Surgery Medicine-Surgery

CiteScore

1.20

自引率

0.00%

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