1临床资料患者,男性,43岁,因“间断腹胀四月余”入院。患者四月余前因腹胀行腹部B超发现右肾占位,CT示:右肾占位性病变,考虑肾癌,MRI示右肾中部前唇结节影,考虑小肾癌,同时发现肝周少量积液,右侧胸腔积液,食道下段食管壁增厚。消化道造影未发现异常,血常规嗜酸细胞增多达到30% 1 clinical data patients, male, 43 years old, due to “intermittent bloating more than four months” admission. Patients with abdomen abdominal ultrasound in the first month of April found that the right renal space occupancy, CT showed: right renal space-occupying lesions, consider kidney cancer, MRI showed the right middle kidney anterior lip nodules, consider small renal cell carcinoma, and found that the liver Small amount of effusion, right pleural effusion, lower esophageal esophageal wall thickening. Gastrointestinal angiography was not found abnormal blood eosinophilia increased to 30%