Current Diagnostic and Therapeutic Approaches to Ovarian Remnant Syndrome in Queens

Ovarian Remnant Syndrome (ORS) is a disease characterized by clinical findings arising from remnant ovarian tissue following a spaying surgery. Affected queens may exhibit behavioral signs of estrus, and in chronic cases, severe complications such as stump pyometra, mammary tumors, or granulosa cell tumors may develop, significantly impairing the animal’s quality of life. Therefore, surgical removal of ovarian remnants is highly recommended. Due to its low prevalence, ORS remains a subject of ongoing research aimed at clearly identifying its causes, accurate diagnosis, and the most effective surgical treatment methods. Thus, this review aims to provide a comprehensive overview of the literature regarding the etiology, clinical presentation, diagnostic methods, including AMH measurement as a new and trending technique, and treatment options for ORS in queens. Ultimately, a deeper understanding of ORS in queens by clinical veterinarians may contribute to better outcomes and quality of life for affected queens.