follicular-cell tumors of the thyroid ( carcinomas , cystadenocarcinomas , adenomas , cystadenomas , and papillary cystadenomas ) occurred at statistically significant incidences ( p < /= 0.005 ) in low- and high-dose groups of male rats ( controls 0/53 , low-dose 7/40 , high-dose 6/40 ) ;
C0001430
adenomas
C0010633
cystadenomas