Larsson S G, Lufkin R B, Hoover L A
Department of Radiologic Sciences and Head and Neck Surgery, UCLA School of Medicine 90024.
Acta Radiol. 1987 Nov-Dec;28(6):693-6.
Computed tomography offers a convenient method for the evaluation of the submandibular salivary glands and their surroundings. Normal measurements were established based on 38 normal subjects. The visualization of the ductal system in the gland and the relationship of the gland to the platysma muscle were recorded. The CT scans of 12 patients with a tongue base carcinoma and 4 patients with a verified obstruction of the submandibular duct were also reviewed to establish how the glands are affected by extrinsic lesions. The normal glands measured 28 x 18 mm (+/- 5 mm) in the axial plane. Two patients with unilateral hypoplasia of the gland were found in the normal group. Visualization of the intraglandular duct is not a specific finding since it was observed in more than 25 per cent of the normal group. Displacement and bulging of the platysma muscle by the submandibular gland can be a sign of glandular enlargement. It was also seen in 9 out of 12 patients with carcinoma of the base of the tongue.
计算机断层扫描为评估下颌下唾液腺及其周围组织提供了一种便捷的方法。基于38名正常受试者建立了正常测量值。记录了腺体中导管系统的可视化情况以及腺体与颈阔肌的关系。还回顾了12例舌根癌患者和4例经证实的下颌下导管阻塞患者的CT扫描结果，以确定腺体如何受到外部病变的影响。正常腺体在轴平面上的测量值为28×18毫米（±5毫米）。在正常组中发现了2例腺体单侧发育不全的患者。腺体内导管的可视化并非特异性表现，因为在超过25%的正常组中都观察到了这一情况。下颌下腺导致颈阔肌移位和膨隆可能是腺体肿大的迹象。在12例舌根癌患者中也有9例出现了这种情况。
