24,25) An additional feature that can be helpful is the "interstitial line sign," representing a thin echogenic line extending from the endometrial canal
directly to the gestational sac, representing the cornual segment of the endometrial canal
or interstitial portion of the fallopian tube (Figure 10).
There is smooth, broad and minimal indentation of myometrium or fibrous component into the endometrial canal
Endometrial polyps can be sessile or pedunculated and can protrude into the endometrial canal
An intracavitary leiomyoma is almost entirely within the endometrial canal
A normally positioned IUCD lies in the midline of the endometrial canal
, equidistant from the uterine margins.
Transverse 2D view reveals 2 endometrial canals
(hands) at the fundus and fibroid (arrows; B).
It is the failure of this last process that produces a septate uterus with two endometrial canals
, reflecting either a partial or complete failure of the duct walls to dissolve, depending on the extent of the septum.