_:vb50952605 . _:vb50952605 "url:https://www.sciencedirect.com/science/article/pii/S1556086415305220"^^ . _:vb50952605 . _:vb50952605 "A sarcoma and malignant mediastinal mesenchymnal tumor that is located_in the mediastinum."^^ . _:vb50952605 . _:vb50952605 .