Only parts a and b of Figure 4 were included in the original publication of this paper in Reproduction 128(6) 843–856. Below is the complete figure and caption.
Ultrasonographic images obtained during the oestrous cycles of female no. 238. (a) Ultrasonographic image of an anovulatory follicle on the day of behavioural oestrus. Note the similar size to the preovulatory follicle (Fig. 1a) and the thickened follicular wall (arrow) indicative of estrogen producing cells. (b) Ultrasonographic image of an anovulatory haemorrhagic follicle 4 days following behavioural oestrus. Note the echogenicity of the follicular fluid and the thinning follicular wall. Upon ballottement, the fluid within the follicle swirled. (c) A day 8 anovulatory haemorrhagic follicle. Note the distinct pockets observed within the structure. While the upper pocket (UP) had distinct gel-like bands, fluid was observed to swirl in the lower pocket (LP) upon ballottement. (d) Ultrasonographic image of a large fluid-filled structure diagnosed as a follicular cyst. Note the absence of a thickened follicular wall.
Citation: Reproduction 129, 1; 10.1530/rep.1.00328e