舌癌CT表现的分析

目的　探讨舌癌的CT表现以提高诊断能力。材料与方法　 44例舌癌经活检或手术病理证实 ,年龄 3 2～ 79岁。应用ShimadzuSCT 45 0 0TFCT机 5mm层厚连续扫描 ,并给予团注法增强扫描 ,嘱患者用鼻呼吸和不做吞咽动作。结果　平扫 :2 7例溃疡型为低密度区 ,最小为 8mm× 10mm ;15例疣型为等或略高密度区 ,最小为 10mm× 12mm ;正常舌侧的脂肪低密度区变小或增大。增强 :溃疡型呈环形或不均匀性强化 ,疣型呈环形强化。 2例未发现病灶 ,大小为 5mm× 10mm。结论　溃疡型和疣型舌癌CT表现有所不同 ,注意舌双侧的对称性能提高较小病灶的发现。

CT Findings of the Carcinoma of Tongue

Objective To improve the clinician's ability in diagnosing thecarcinoma of tongue by analyzing its CT manifestations. Materials and Methods Both plain and contrast-enhanced CT scanning were performed in 44 patients (32～79 years old) with biopsy- or pathologically-proved carcinoma of tongue. The patients were asked to breathe through nose and not to make swallowing during scanning. Results On plain scans, ulcerous type (n=27) showed low-density areas with the smallest lesion being 8mm×10 mm in size, while verrucoid type (n=15) presented as iso- or slightly high-density areas with the smallest lesion of 10mm×12mm. The low-density shadow of the fat on the normal side of the tongue was decreased or increased. On enhanced-scans, ring-like or heterogeneous enhancement was seen in ulcerous type, and ring-like enhancement was seen in verrucoid type. In the remaining two patients, the lesions (5mm×10mm in size) could not be demonstrated on CT scans. Conclusion Ulcerous type and verrucoid type of the carcinoma of tongue have some different CT manifestations. With great attention in observing and comparing the tongue's both sides, smaller lesions will be detected.