Cai Xuemei,Yuan Wenying,Xu Huafeng.Imaging characteristics and diaghostic analysis of rare parotid gland tumors in children[J].Journal of Clinical Pediatric Surgery,2026,(03):274-279.[doi:10.3760/cma.j.cn101785-202506059]
儿童腮腺少见肿瘤的影像学特征及诊疗分析
- Title:
- Imaging characteristics and diaghostic analysis of rare parotid gland tumors in children
- 摘要:
- 目的 分析儿童腮腺少见肿瘤的临床资料及影像学特征,提升儿童腮腺病变的术前诊断水平。方法 本研究为回顾性病例系列研究,收集上海市儿童医院2014年1月至2025年5月期间经病理检查证实的13例儿童腮腺少见肿瘤患儿的临床资料,对其CT及MRI征象进行分析。结果 13例患儿中,多形性腺瘤7例、肌上皮瘤1例、淋巴瘤2例、横纹肌肉瘤1例、分泌性癌1例、NTRK重排梭形细胞肿瘤1例。多形性腺瘤密度及信号表现多样,呈持续性渐进性强化;肌上皮瘤以明显渐进性向心性强化为特征;淋巴瘤表现为稍高密度、T1WI稍高信号,密度及信号均匀,DWI呈明显弥散受限;横纹肌肉瘤呈分叶状,密度不均,DWI呈明显高信号,伴明显持续性渐进性不均匀强化,以周边强化为主;分泌性癌具有特征性T1WI稍高信号、T2WI低信号表现,弥散受限,强化特点为快进缓出;NTRK重排梭形细胞肿瘤绕面神经生长,CT以低密度为主,T1WI呈等信号,T2WI呈高信号,强化明显且均匀。结论 儿童腮腺少见肿瘤的增强表现及MRI弥散成像具有各自特异性特征,基于这些特征可对肿瘤的恶性程度及病理类型进行初步预测。
- Abstract:
- Objective To explore the clinical profiles and imaging features of rare parotid gland tumors and boost the preoperative diagnostic level of parotid gland lesions in children.Methods From January 2014 to May 2025,the relevant clinical data were retrospectively reviewed for 13 children of rare parotid gland tumors confirmed by pathological examination.Both computed tomography (CT) and magnetic resonance imaging (MRI) were systematically examined.Results There were pleomorphic adenoma (n=7),myoepithelioma (n=1),lymphoma (n=2),rhabdomyosarcoma (n=1),secretory carcinoma (n=1) and NTRK-rearranged spindle cell neoplasm (n=1).Pleomorphic adenomas displayed diverse density and signal with continuous and progressive enhancement; myoepithelioma was characterized by significant progressive centripetal enhancement; lymphoma presented slightly higher density,slightly higher signal on T1WI,uniform density/signal and significantly restricted diffusion on DWI; rhabdomyosarcoma was lobulated with uneven density,significantly high signal on DWI and significant continuous progressive uneven enhancement mainly in periphery; secretory carcinoma had characteristic slightly high signal on T1WI and low signal on T2WI,restricted diffusion,enhancement characteristics of rapid entry and slow exit; NTRK-rearranged spindle cell tumor grew around facial nerve,mainly low density on CT,isointense on T1WI,hyperintense on T2WI with obvious and uniform enhancement.Conclusions The enhancement manifestations and MR diffusion imaging of rare parotid gland tumors in children have their own specific characteristics.Malignancy degree and pathological type of tumors may be preliminarily predicted.
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备注/Memo
收稿日期:2025-6-27。
通讯作者:徐化凤,Email:xhf020406@163.com