Vesicles: MR Imaging Findings in II

supposed tobem#{252}llerianinorigin.Anatomically, midlinepros-taticcystsderivefromthecaudal fusedendsofmUllerianducts attheleveloftheverumontanum. Recently, severalreports haveemphasized thedifferences intheembryologicoriginoftheurogenital sinusandthemUllerianductsfromtheentoderm andmesoderm, respectively [10].Histopathologi-cally,thedistinction isconfusing. Transitional epithelium,stratified squamous epithelium, cuboidal epithelium, andevennoepithelial lininghavebeenreported [11].Thecontents ofmUllerian ductcystsvary(mucoid, purulent, serous, orhem-orrhagic). Whenbloodispresent(notobserved inourseries),bothTi