A highly FSHR-specific monoclonal antibody was used to detect FSHR in cancer metastases from 6 major types of cancers (lung, breast, prostate, colon, kidney, and uterine corpus leiomyosarcoma) to 6 frequent locations (liver, lymph node, bone, pleura, lung, and brain). Here, FSHR is linked to leiomyosarcoma of the corpus uteri.