RT Journal
A1 Stephenson J
T1 TUmors from stem cells
JF JAMA
JO JAMA
YR 2009
FD March 18
VO 301
IS 11
SP 1118
OP 1118
DO 10.1001/jama.2009.356
UL http://dx.doi.org/10.1001/jama.2009.356
AB 
The patient, an Israeli boy who has ataxia telangiectasia, a disease that is usually fatal in the second or third decade and causes degeneration of certain brain regions and impaired immunity, received the fetal stem cells at a Moscow clinic when he was 9, 10, and 12 years old. Later, at a medical center in Israel (that had no role in the stem cell therapy), physicians discovered the boy had tumors in his brain and spinal cord. Tests of the tumor tissue revealed that the growth was derived from fetal cells, although the boy's underlying impaired immunity might have facilitated tumor growth.