肾盂炎性肌纤维母细胞瘤合并肾髓质间质细胞瘤1例报告

A case report of renal inflammatory myofibroblastic tumor and renomedullary interstitial cell tumor

炎性肌纤维母细胞瘤是一种潜在或低度恶性的间叶组织肿瘤,临床少见;肾髓质间质细胞瘤是一种临床少见的肾良性肿瘤。同时合并这两种疾病者,尚未见文献报道,本文报道1例。患者因腰痛、血尿入院,术前MRI检查考虑肾盂癌可能性大。行机器人辅助腹腔镜根治性左肾输尿管切除术,术后病理示肾盂炎性肌纤维母细胞瘤合并肾髓质间质细胞瘤。术后随访6个月余,未见肿瘤复发或转移。

Inflammatory myofibroblastic tumor(IMT)is a potentially or low-grade malignant mesenchymal neoplasm,which is rare in clinic.Renomedullary interstitial cell tumor(RICT)is a clinically rare benign renal tumor.The combination of these two diseases in one patient has not been reported.A 25-year-old female patient was admitted to the hospital due to left back pain for 12 days and hematuria for 1 week.MRI of kidneys showed a mass in the left renal pelvis,which was considered as renal pelvic carcinoma.Urine cytopathological examination was negative.Robot-assisted laparoscopic radical left nephroureterectomy was performed.There was no tumor recurrence or metastasis during the follow-up for more than 6 months after operation.