In its classic definition, by FranÃ§ois-Louis Ganshof (1944), feudalism describes a set of reciprocal legal and military obligations among the warrior nobility revolving around the three key concepts of lords, vassals and fiefs.
The exact cause of intracardiac echogenic foci remains unclear; however, they appear to be caused by small deposits of calcium in the papillary muscle of the fetal heart.
Small echogenic foci in theovaries are most frequently due to hemosiderin or calcification. A few small echogenic foci in theovaries are associated with benign histologic changes and do not appear to be reliable indicators ofendosalpingiosis or endometriosis. Key words: calcification; hemosiderin; ovary; sonography.f echogenic foci were present in either normal ovary on the preoperativescan, the removed ovary was scanned in a saline bath, and the surface was marked with india ink overan echogenic focus. Histologic sections were then obtained at the marked site. Results. Echogenic fociwere detected in 23 ovaries of 16 women.