The radiographic wall-signs of ovarian dermoids

Ovarian dermoids posses a distinct fibrous capsule which may be recognized radiographically by virtue of the contrasting effect of the greasy dermoid matter and the surrounding peritoneal fat. Part or all of the wall may be outlined in some projections even when the dermoid contents are not radiolucent enough to be recognized as such. Occasionally the wall of a dermoid cyst, heavily calcified or ossified, may be easily recognized radiographicaly.