A renal inflammatory myofibroblastic tumor similar to nephrapostasis

作者：Feng, Shilou; Wang, Aixiang^*; Zhang, Ruishan; Deng, Xiaojing; Tang, Yang; Chang, Jiwu; Liu, Chunyu^*

来源：International Journal of Clinical and Experimental Pathology, 2016, 9(2): 2516-2519.

• Inflammatory myofibroblastic tumor
• nephrapostasis
• renal cyst

Renal inflammatory myofibroblastic tumor (IMT) rarely presents clinically with a picture of nephrapostasis especially in an elderly female patient. A 69-year old woman presented with a 2-month history of left flank pain. Abdominal computed tomography (CT) demonstrated a huge cystic tumor on the left kidney concerning for infection. Under the impression of renal abscess, a laparoscopic renal cyst decortication was performed. Intraoperative frozen sections showed simple renal cyst. However, the postoperative histologic examination showed myofibroblastic spindle cells accompanied by an inflammatory infiltration of plasma cells and lymphocytes, arguing against the diagnosis of a cyst of kidney. Immunohistochemical staining was positive for Vimentin, SMA, CD68, lambda chain and. chain, negative for Desmin, P53, ALK, CK and CD117, confirming the diagnosis of IMT. And the culture of cystic fluid revealed the presence of escherichia coli. Over the course of long-term follow-up after surgery, the patient recovered and did not have recurrence or metastasis.

• 出版日期2016
• 单位天津医科大学