TSPAN7 and leiomyosarcoma: In an analysis of gene expression profiles from 13 primary and 15 metastatic uterine leiomyosarcoma cases, Davidson et al. [24] reported that TSPAN7 was overexpressed in primary uterine leiomyosarcoma; however, in our study, TSPAN7 was downregulated in all histological types of STS.