breast,lipoma

The radiopaque capsule (arrowheads) is visible around all except the most posterior aspect of the mass.

http://www.google.com.eg/imgres?imgurl=http://download.imaging.consult.com/ic/images/S1933033207712892/gr3-midi.jpg&imgrefurl=http://imaging.consult.com/image/topic/dx/Breast%3Ftitle%3DLipoma%2520(Breast)%26image%3Dfig3%26locator%3Dgr3%26pii%3DS1933-0332(07)71289-2&usg=__Xxezrq-JmuA9bY_ir4smb3EdGM4=&h=200&w=190&sz=4&hl=ar&start=1&sig2=NuP5-leUiMRhwNR-4ch6mg&zoom=1&itbs=1&tbnid=LIjuQlk-s5spbM:&tbnh=104&tbnw=99&prev=/images%3Fq%3Dlipoma,breast%26hl%3Dar%26sa%3DG%26gbv%3D2%26tbs%3Disch:1&ei=icbuTOPwL4iChQfMmYm5Cg