PT - JOURNAL ARTICLE AU - Shih-Hung Tsai AU - Shi-Jye Chu TI - Outlined psoas muscle shadow AID - 10.1136/bcr.2006.041970 DP - 2009 Jan 01 TA - BMJ Case Reports PG - bcr2006041970 VI - 2009 4099 - http://casereports.bmj.com/content/2009/bcr.2006.041970.short 4100 - http://casereports.bmj.com/content/2009/bcr.2006.041970.full