Gupta Keshav Kumar, Mughal Zahir, Ahmad Ijaz
Department of Otorhinolaryngology, University Hospitals Birmingham NHS Trust, Heartlands Hospital, Birmingham, England.
Department of Otorhinolaryngology, University Hospitals Birmingham NHS Trust, Queen Elizabeth Hospital, Birmingham, England.
Turk Arch Otorhinolaryngol. 2022 Sep;60(3):170-172. doi: 10.4274/tao.2022.2022-6-16. Epub 2022 Nov 15.
The most commonly reported superior thyroid cornu (STC) anatomical variation is in STC syndrome, where the cornu is enlarged or medially displaced. STC agenesis is a rare laryngeal variation that can be unilateral or bilateral. Previous studies have reported STC agenesis in cadaveric or forensic studies in patients with an otherwise normal larynx. We report a case of unilateral STC agenesis in the context of a stage III glottic laryngeal squamous cell carcinoma. The variation was discovered intra-operatively during a total laryngectomy and was clinically unknown beforehand. There were no clinical or histological signs of bony erosion by the tumor. To our knowledge, this is the first report of unilateral STC agenesis in a patient with laryngeal malignancy. This article draws attention to a rare anatomical variant of the larynx and highlights the surgical implications including potential diagnostic challenges and operative considerations.
最常报道的甲状腺上极角（STC）解剖变异见于STC综合征，即该角增大或向内侧移位。STC发育不全是一种罕见的喉部变异，可为单侧或双侧。既往研究在尸体或法医研究中报道了在喉部其他方面正常的患者中存在STC发育不全。我们报告1例III期声门型喉鳞状细胞癌患者出现单侧STC发育不全。该变异是在全喉切除术术中发现的，术前临床上并不知晓。没有肿瘤导致骨质侵蚀的临床或组织学迹象。据我们所知，这是首例在喉恶性肿瘤患者中出现单侧STC发育不全的报道。本文提请注意一种罕见的喉部解剖变异，并强调了其手术意义，包括潜在的诊断挑战和手术注意事项。
