I have a 17yo mare who was suspected of early GCT 2 years ago, at that time inhibin and testosterone showed very slightly elevated levels. All attempts to get mare in foal failed. This year she was retested for GCT and all levels were within normal range, there has been no change in the size of the ovary. However the ovary does show a honeycomb pattern and the other ovary appears to be inactive. The two vets who have looked at her are stuped. We gave the mare a double dose of lutelase and hcg on last cycle bred live cover.......she stayed in heat for three weeks and continued to show signs of heat even after the vet said her cervix was closing. We placed her on regumate and only then did she go out of heat. She is currently on her 15th day of regumate and I want to try and breed her trough one more cycle before considering surgery to remove the ovary. I am not convinced she has GCT and apparently the vets are not either but........what else could it be? and what would be the most likely protocol to get this mare in foal. She has a clean culture and IIA uterus. There is potentially one uterine cyst that shows on ultrasound....the vet keeps thinking it is an absobing pregnancy....but it was present at other ultrasounds. She has had prior foals the last in 1999.
Thanks, I did look at that article. This mare would have multiple retained follicle or cysts on the left ovary only. These apear in a honeycomb pattern and there are 6 or more, would that be typical? This pattern has remained roughly the same on all ultrasounds.
Are you sure that what you are seeing is multiple follicles, and not simply a single compartmentalized follicle? Once the fibrin strands grow in, they can cause an appearance not dissimilar to multiple follicles.
Another possibility - especially if you are seeing multiple follicles - is the possibility that you have a mare that is not actively cycling (i.e. not ovulating) and what you are seeing is an appearance similar to an ovary during transitional phase - multiple smaller follicles.
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