Surgical treatment of metastatic malignant solitary fibrous tumor: A case report

Abstract

We report a case of metastatic pleural solitary fibrous tumor. The original tumor was a parapharyngeal tumor dissected more than 10 years ago. In addition, a retroperitoneal tumor dissected following surgery for the pleural tumor was revealed to be a metastatic solitary fibrous tumor of the same origin. It is very rare for metastatic solitary fibrous tumors to occur in the pleura and retroperitoneal spaces after more than 10 years since the original parapharyngeal solitary fibrous tumor was completely dissected.