Tachino Hirohiko, Fushiki Hiroaki, Ishida Masayuki, Watanabe Yukio
Department of Otolaryngology, Head and Neck Surgery, University of Toyama, Toyama, Japan.
J Med Case Rep. 2012 Jan 18;6:21. doi: 10.1186/1752-1947-6-21.
A chondrosarcoma originating from the hyoid bone is very rare. Here, we describe a case of low-grade chondrosarcoma of hyoid origin and discuss its preoperative imaging features, including those on positron emission tomography-computed tomography, and its recurrence rate.
A 42-year-old Japanese man noticed a mass in the right submandibular region of his neck. A hard 3.0 × 2.8 cm tumor was noted on the right side of his hyoid bone. The mass was immobile and moved with deglutition.
Even though radiographic studies, including positron emission tomography-computed tomography, were inconclusive, the cartilaginous tumor was surgically removed en bloc, and the tumor was diagnosed based on the results of pathological investigations. Close follow-up is recommended in such cases due to the potential for recurrences, because local recurrence occurred in 50% of the reported cases of grade one chondrosarcomas.
起源于舌骨的软骨肉瘤非常罕见。在此，我们描述一例起源于舌骨的低级别软骨肉瘤病例，并讨论其术前影像学特征，包括正电子发射断层扫描-计算机断层扫描（PET-CT）的特征以及其复发率。
一名42岁的日本男性注意到其颈部右下颌下区域有一个肿块。在其舌骨右侧发现一个坚硬的3.0×2.8厘米肿瘤。该肿块固定不动，但随吞咽动作移动。
尽管包括PET-CT在内的影像学检查结果不明确，但该软骨肿瘤仍被整块手术切除，并根据病理检查结果进行诊断。由于存在复发的可能性，此类病例建议密切随访，因为据报道一级软骨肉瘤病例中有50%会发生局部复发。
