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Pediatr Blood Cancer. 2010 Jul 1;54(7):1035-7. doi: 10.1002/pbc.22401.

Sirolimus therapy for fibromatosis and multifocal renal cell carcinoma in a child with tuberous sclerosis complex.

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Division of Hematology-Oncology, Department of Pediatrics, University of Alabama at Birmingham, Birmingham, Alabama, USA.


A male with tuberous sclerosis complex (TSC) developed a chest wall fibromatosis and bilateral multifocal renal cell carcinoma (RCC). The fibromatosis tumor was initially resected during infancy but recurred 5 years later. At that time, bilateral RCC was also detected, leading to the resection of the more extensively affected right kidney. In an attempt to avoid bilateral nephrectomies, the patient was treated with the mTOR inhibitor sirolimus. Within 6 months of therapy, the fibromatosis and remaining RCC tumors responded substantially with minimal adverse effects.

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