Endobronchial metastasis secondary to renal clear cell carcinoma:A case report  

作　　者：Tian-Hao Xie Yan Fu Si-Ning Ha Qing-Xu Meng Qian Sun Pan Wang 

机构地区：[1]Department of General Surgery,The Affiliated Hospital of Hebei University,Baoding 071000,Hebei Province,China [2]Department of Ophthalmology,Baoding First Central Hospital,Baoding 071000,Hebei Province,China [3]Department of Pathology,The Affiliated Hospital of Hebei University,Baoding 071000,Hebei Province,China

出　　处：《World Journal of Clinical Cases》2024年第23期5416-5421,共6页世界临床病例杂志

摘　　要：BACKGROUND Endobronchial metastases(EBMs)are tumours that metastasise from a malignant tumour outside the lungs to the central and subsegmental bronchi,and are visible under a bronchofibrescope.Most EBMs are formed by direct invasion or metastasis of intrathoracic malignant tumours,such as lung cancer,oesophageal cancer or mediastinum tumours.Renal cell carcinoma(RCC),accounting for 2%to 3%of all tumours,is a common malignant tumour of the urinary system.Renal clear cell carcinoma(RCCC)constitutes the predominant pathological subtype of RCC,comprising approximately 70%to 80%of all RCC cases.RCCC can spread and metastasise through arterial,venous and lymphatic circulation to almost all organs of the body.Moreover,lung,bone,liver,brain and local recurrence are the most common metastatic neoplasms of RCCC.However,EBM from RCCC has a low complication rate and is often misdiagnosed as primary lung cancer.CASE SUMMARY A 71-year-old male patient who had undergone radical left nephrectomy 7 years prior due to RCCC was referred to our hospital due to a 1-mo history of productive cough.The results of an enhanced chest CT scan indicated the presence of a soft tissue nodule in the upper lobe of the left lung,and flexible bronchoscopy revealed a hypervascular lesion in the bronchus of the left lung's superior lobe.Therefore,the patient underwent thoracoscopic left superior lobe wedge resection,and pathology confirmed EBM from the RCCC.CONCLUSION EBM from RCCC has a low incidence and no characteristic clinical manifestations in the early stage.If a bronchial tumour is found in a patient with RCCC,the possibility of bronchial metastatic cancer should be considered.

关 键 词：Endobronchial metastases Clear renal cell carcinoma Renal cell carcinoma DIAGNOSIS TREATMENT Case report 

分 类 号：R653[医药卫生—外科学]