RT Journal Article SR Electronic T1 Proximal type epithelioid sarcoma arising in the base of the skull: a diagnostic challenge JF Journal of Clinical Pathology JO J Clin Pathol FD BMJ Publishing Group Ltd and Association of Clinical Pathologists SP 472 OP 474 DO 10.1136/jcp.2010.075986 VO 63 IS 5 A1 Lian, Derrick Wen Quan A1 Lee, Hwei Yee A1 Tan, Kheng Kooi A1 Sitoh, Yih Yian A1 Yap, Wai Ming A1 Chuah, Khoon Leong YR 2010 UL http://jcp.bmj.com/content/63/5/472.abstract AB