Inflammatory Myofibroblastic Tumor of the Kidney Misdiagnosed as Renal Cell Carcinoma

다국어 초록 (Multilingual Abstract)

The inflammatory myofibroblastic tumor (IMT), also knowns as inflammatory pseuduotumor,is a soft tissue lesion of unknown etiology. In the urogenital tract, IMT mainly affects the urinary bladder or prostate, but rarely the kidney. It has been considered as a nonneoplastic reactive inflammatory lesion, but nowadays, it is regarded as a neoplasm due to its high recurrence rate and metastasis. We describe a case of a 61-yr-old woman that had originally been misdiagnosed as renal cell carcinoma,which was pathologically revealed to be an IMT.

참고문헌 (Reference)

1 Brunn H, "Two interesting benign lung tumors of contradictory histopathology; remarks on the necessity for maintaining chest tumor registry" 9 : 119-131, 1939

2 Donner LR, "Progression of inflammatory myofibroblastic tumor (inflammatory pseudotumor) or soft tissue into sarcoma after several recurrences" 27 : 1095-1098, 1996

3 Larbcharoensub N, "Primary renal inflammatory myofibroblastic tumor" 76 : 94-96, 2006

4 Young RH, "Non-neoplastic disorders of the urinary bladder"

5 Kapusta LR, "Inflammatory myofibroblastic tumors of the kidney: a clinicopathologic and immunohistochemical study of 12 cases" 27 : 658-666, 2003

6 Gwynn ES, "Inflammatory myofibroblastic tumor associated with renal cell carcinoma" 66 : 880-, 2005

7 Arber DA, "Frequent presence of the Epstein-Barr virus in inflammatory pseudotumor" 26 : 1093-1098, 1995

8 Brittig F, "Follicular dendritic reticulum cell tumor mimicking inflammatory pseudotumor of the spleen" 10 : 57-60, 2004

9 Coffin CM, "Extrapulmonary inflammatory myofibroblastic tumor (inflammatory pseudotumor): a clinicopathologic and immunohistochemical study of 84 cases" 19 : 859-872, 1995