Fabregas J, Talebi TN, Rocha Lima C, Sfakianakis GN, Robinson P, Montero AJ. Patient with synchronous low grade leiomyosarcoma of the thigh, primary pancreatic neuroendocrine tumor, and lung metastases: Why biopsy of metastases should be the standard. J Gastrointest Oncol. 2011 Jun; 2(2):109-12.