Stepwise addition of genetic changes correlated with histological change from “well-differentiated” to “sarcomatoid” phenotypes: a case report

BMC Cancer

Case Report

Taichiro Goto¹  Takahiro Nakagomi¹  Toshio Oyama²  Kenji Amemiya³  Masao Omata³  Yosuke Hirotsu³  Hitoshi Mochizuki³ 

[1] Department of General Thoracic Surgery, Yamanashi Central Hospital, Yamanashi, Japan;Department of Pathology, Yamanashi Central Hospital, Yamanashi, Japan;Genome Analysis Center, Yamanashi Central Hospital, 400-8506, Yamanashi, Japan;

关键词: Sarcomatoid carcinoma;    Next generation sequencing;    Tumor evolution;    TP53;    KRAS;   

DOI  :  10.1186/s12885-017-3059-1

 received in 2016-02-11, accepted in 2017-01-12,  发布年份 2017

来源: Springer

【 摘 要 】

BackgroundSarcomatoid cancer is defined by the World Health Organization as a category of non-small cell lung cancers with sarcoma or sarcoma-like differentiation. They are characterized by poor prognosis and resistance to conventional chemotherapy. However, the mutational profile of sarcomatoid cancer remains yet to be elucidated. Sarcomatoid cancers are usually biphasic tumors composed of carcinomatous and sarcomatous components, but the evolutional development of sarcomatoid cancer is controversial.Case presentationWe present an illustrative case of sarcomatoid cancer composed of three different histological areas. Targeted sequencing of 53 lung cancer-related genes was performed in each component and their phenotypic changes were correlated with stepwise addition of genetic changes.ConclusionSarcomatous change of carcinoma occurs in the case of sarcomatoid cancer, and phenotypic changes to sarcomatoid cancer are associated with the addition of mutation patterns and derived from poorly differentiation tumor.

【 授权许可】

CC BY   
© The Author(s). 2017