MIT FAMILY TRANSLOCATION RENAL CELL CARCINOMA, REPORT CASE
*A. Kbirou, C. Waffar, A. Ettanji, M. Rkik, Y. Fadel, M. Modeste, H. Lachhab, Y. Daghdagh, Saleh, M. Dakir, A. Debbagh, R. Aboutaib
ABSTRACT
Renal cell carcinomas (RCCs) are a heterogeneous group of cancers. Translocation-associated renal cell carcinoma (t-RCC) is a relatively uncommon subtype of renal cell carcinoma characterized by recurrent gene rearrangements involving the TFE3 or TFEB loci. TFE3 and TFEB are members of the microphthalmia transcription factor (MiT) family, which regulates differentiation in melanocytes and osteoclasts, and MiT family gene fusions activate unique molecular programs that can be detected immunohistochemically. Here we report a case of 17-year old girl presenting right lumbar mass. Abdominal ultrasound and computed tomography revealed heterogeneous renal mass invading the liver with hepatic, ganglionic and bone metastases. Histopathology revealed MiT Family Translocation-Associated Renal Cell Carcinoma. The patient was treated with targeted therapy because surgery is impossible.
[Full Text Article] [Download Certificate]