Traumatic neuroma after neck dissection: CT characteristics in four cases.
Traumatic neuroma after neck dissection: CT characteristics in four cases.
复制标题
颈清扫术后创伤性神经瘤：四例CT特征。
DOI：
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发表时间：
2000
期刊：
影响因子：
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通讯作者：
Chun
中科院分区：
文献类型：
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作者：
Lynn F. Huang;Jane L. Weissman;Chun
背景和目的
创伤性神经瘤是指受伤的神经试图再生，在颈淋巴清扫术后可能表现为可触及的结节或对触摸敏感的区域(触发点)。本研究的目的是确定4例颈清扫术后创伤性神经瘤的CT特征。
方法
对1995年4月至1998年11月收治的3例男性和1例女性(年龄45-)颈动脉后结节根治性颈淋巴清扫术患者的CT资料进行了回顾分析。CT检查于颈淋巴清扫术后1.5~6年进行，并结合临床和/或病理检查。三名患者患有上呼吸道鳞状细胞癌，一名患者患有原发腮腺腺癌。
结果
3例创伤性神经瘤患者有一个中央透明的结节，边缘致密，覆盖的脂肪层完整，CT检查稳定1-2年。其中一个有临床触发点。第四例经病理证实的外伤性神经瘤合并肿瘤的患者有完整的脂肪覆盖，但结节缺乏放射透明中心，且不靠近颈动脉。
结论
CT表现为位于颈动脉后方但靠近颈动脉的稳定结节，中央呈放射状透明，边缘致密，脂肪覆盖完整，结合触发点和无间隔生长的临床特征，强烈提示创伤性神经瘤的诊断。
BACKGROUND AND PURPOSE
Traumatic neuroma, an attempt by an injured nerve to regenerate, may present as a palpable nodule or an area sensitive to touch (trigger point) after neck dissection. The purpose of this study was to identify CT characteristics of traumatic neuroma in four patients after neck dissection.
METHODS
Between April 1995 and November 1998, the CT studies in three men and one woman (ages, 45-64 years) who had had a radical neck dissection and a nodule posterior to the carotid artery were reviewed retrospectively. CT was performed 1.5 to 6 years after neck dissection with clinical correlation and/or pathologic examination. Three patients had squamous cell carcinoma of the upper aerodigestive tract and one had a primary parotid adenocarcinoma.
RESULTS
Three patients with a traumatic neuroma had a centrally radiolucent nodule with peripherally dense rim and intact layer of overlying fat, which was stable on CT studies for 1 to 2 years. One of these had a clinical trigger point. The fourth patient with a pathologically proved traumatic neuroma mixed with tumor had intact overlying fat, but the nodule lacked a radiolucent center and was not close to the carotid artery.
CONCLUSION
The CT findings of a stable nodule that is posterior but close to the carotid artery with central radiolucency, a dense rim, and intact overlying fat, combined with the clinical features of a trigger point and a lack of interval growth, strongly suggest the diagnosis of traumatic neuroma.