(Right neck)poorly differentiated adenocarcinoma was found in lymph nodes (1 / 1) and fibrous adipose tissue . Combined with the results of immunohistochemical staining, it was suggested to find the primary tumor in the lung.
TTF-1(+),SP-B(+),NapsinA(+),CK7(+),CK18(+),Ki-67(+,about 30%),P63(+),CK5/6(-),P40(-)，Syn(-),CgA(-),CD56(-),Vimentin(-), CDX2(-)
The mass of right neck was excised, and a piece of gray white tissue was found with volume of 1.5 * 1.5 * 1cm. The section is gray white and medium in quality.
Gender：F
Age：69
family history ：Parents died for unknown reasons
Serological examination ：Serum CEA was normal and NSE was slightly increased
surgical mode ：Right neck mass excision
Tumor size：1.5 * 1.5 * 1cm
Disease status(primary/relapse)：primary
G：III
TNM：-
Stage：IIIB
Gene：ROS1
Mutant Site：PCR
Mutation Type：fusion
% tumor ：*
% necrosis：*
