Mukherji S K, Mancuso A A, Kotzur I M, Mendenhall W M, Kubilis P S, Tart R P, Lee W R, Freeman D
Department of Radiology, University of Florida College of Medicine, Shands Teaching Hospital, Gainesville.
Radiology. 1994 Oct;193(1):141-8. doi: 10.1148/radiology.193.1.8090882.
To present the expected appearance of the irradiated larynx and neck as seen at computed tomography (CT).
Sixty-one patients with primary squamous cell carcinoma of the larynx or hypopharynx were treated with radiation therapy. All patients underwent CT before and after treatment.
Expected changes include symmetric thickening of the epiglottis, aryepiglottic folds, and false cords and increased attenuation of the paralaryngeal fat. The posterior pharyngeal wall tends to thicken and its mucosa enhances; retropharyngeal space edema is common. Glottic changes include increased attenuation of the paraglottic fat planes and thickening of the anterior and posterior commissures. Subglottic changes include thickening of the mucosa and submucosa. Soft-tissue changes include skin and platysmal thickening, as well as reticulation and increased attenuation of the subcutaneous and deeper fat.
Familiarization with expected radiologic changes is essential for interpretation of CT images of the irradiated larynx so that such changes are not mistaken for signs of persistent or recurrent tumor.
呈现经计算机断层扫描（CT）所见的受照射喉部及颈部的预期表现。
61例喉或下咽原发性鳞状细胞癌患者接受了放射治疗。所有患者在治疗前后均接受了CT检查。
预期变化包括会厌、杓会厌襞和假声带的对称性增厚以及喉旁脂肪密度增加。咽后壁往往会增厚，其黏膜强化；咽后间隙水肿常见。声门改变包括声门旁脂肪平面密度增加以及前后联合增厚。声门下改变包括黏膜和黏膜下层增厚。软组织改变包括皮肤和颈阔肌增厚，以及皮下和深部脂肪的网状改变和密度增加。
熟悉预期的放射学改变对于解读受照射喉部的CT图像至关重要，这样这些改变就不会被误认为是肿瘤持续存在或复发的征象。
