Kimura病(KD)是一种病因不明的罕见慢性肉芽肿性疾病,主要涉及淋巴结损伤,软组织,和唾液腺.临床症状以无痛性皮下软组织肿块为主,常累及头颈部淋巴结和唾液腺,主要表现为弥漫性嗜酸性粒细胞浸润,淋巴细胞,血管增生.文献中很少报道KD仅影响腹股沟淋巴结。我们在这项研究中报告了一名41岁的男性患者,他向医院寻求腹股沟软组织肿块的医疗帮助。磁共振成像(MRI)显示左腹股沟髂血管周围多发异常软组织结节,对比增强扫描显示明显的均匀增强。扩散加权成像显示水分子的运动有限,并显示出明显的高信号。建议使用Fluo18标记的脱氧葡萄糖正电子发射断层扫描/计算机断层扫描(18F-FDGPET/CT)进一步评估患者的一般状况,结果表明,除了左腹股沟区域的病变中的放射性摄取外,身体其他部位未发现明显异常。基于这些影像学发现,该患者最初被怀疑患有恶性病变,然后病人接受了组织病理学检查,被确认为KD。我们的案例研究表明,仅影响腹股沟淋巴结的KD是罕见的,应考虑作为淋巴结病如淋巴瘤的影像学鉴别诊断之一,转移,和Castleman的病.
Kimura\'s disease (KD) is a rare chronic granulomatous disease of unknown etiology that mainly involves damage to lymph nodes, soft tissues, and salivary glands. The clinical symptoms are mainly painless subcutaneous soft tissue masses, often involving head and neck lymph nodes and salivary glands, and are mainly characterized by diffuse eosinophilic infiltration, lymphocyte, and vascular proliferation. There are few reports in the literature that KD affects only inguinal lymph nodes. We report in this study a 41-year-old male patient who presented to the hospital for medical help with soft tissue masses in the groin. Magnetic resonance imaging (MRI) showed multiple abnormal soft tissue nodules around the iliac vessels in the left groin, and a contrast-enhanced scan showed obvious homogeneous enhancement. Diffusion-weighted imaging showed limited movement of water molecules and showed an obvious high signal. Fluoro18-labeled deoxyglucose positron emission tomography/computed tomography (18F-FDG PET/CT) was recommended for further evaluation of the patient\'s general condition, and the results showed that except for the radioactive uptake in the lesions in the left groin region, no obvious abnormality was found in the rest of the body. Based on these imaging findings, the patient was first suspected to have malignant lesions, and then the patient underwent histopathological examination, which was confirmed to be KD. Our case study suggests that KD affects only the inguinal lymph nodes is rare and should be considered as one of the imaging differential diagnoses for lymphadenopathy such as lymphoma, metastases, and Castleman\'s disease.