Unexpected Basal Anti-Müllerian Hormone Concentrations in a 6-Year-Old Bitch Presenting an Ovarian Remnant

Ovarian Remnant Syndrome (ORS) refers to a condition affecting spayed females, characterized by clinical signs typically seen in intact bitches. In this report, Callie, a 6-year-old spayed female German Shepherd, was presented to the Veterinary Teaching Hospital at the University of Bari for a speci...

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Main Authors: Matteo Burgio, Lluis Ferré-Dolcet, Alice Carbonari, Lorenza Frattina, Annalisa Rizzo, Vincenzo Cicirelli
Format: Article
Language:English
Published: MDPI AG 2025-01-01
Series:Animals
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Online Access:https://www.mdpi.com/2076-2615/15/3/311
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author Matteo Burgio
Lluis Ferré-Dolcet
Alice Carbonari
Lorenza Frattina
Annalisa Rizzo
Vincenzo Cicirelli
author_facet Matteo Burgio
Lluis Ferré-Dolcet
Alice Carbonari
Lorenza Frattina
Annalisa Rizzo
Vincenzo Cicirelli
author_sort Matteo Burgio
collection DOAJ
description Ovarian Remnant Syndrome (ORS) refers to a condition affecting spayed females, characterized by clinical signs typically seen in intact bitches. In this report, Callie, a 6-year-old spayed female German Shepherd, was presented to the Veterinary Teaching Hospital at the University of Bari for a specialist examination due to serosanguineous discharge from the vulva. All diagnostic tests recommended in the literature were performed to diagnose ORS. Notably, the Anti-Müllerian Hormone (AMH) assay, considered the gold standard for ORS diagnosis, was used, and the dog tested negative based on the established bibliographic cut-off values. However, advanced diagnostic techniques, including CT scans and laparoscopy, were performed, and histological examination ultimately confirmed the presence of ovarian tissue in the dog’s abdominal cavity. This clinical case underscores the importance of combining hormonal tests with advanced imaging and surgical diagnostics to ensure accurate diagnosis. It highlights the limitations of relying solely on AMH values and emphasizes the need for further research into diagnostic tests, their cut-off values, and the role of collateral examinations to achieve definitive diagnoses in cases where hormonal assays yield inconclusive results.
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spelling doaj-art-042f66f0675b4f5780e187708a86b3992025-08-20T03:12:32ZengMDPI AGAnimals2076-26152025-01-0115331110.3390/ani15030311Unexpected Basal Anti-Müllerian Hormone Concentrations in a 6-Year-Old Bitch Presenting an Ovarian RemnantMatteo Burgio0Lluis Ferré-Dolcet1Alice Carbonari2Lorenza Frattina3Annalisa Rizzo4Vincenzo Cicirelli5Department of Veterinary Medicine, University of Bari Aldo Moro, 70121 Bari, ItalyIndependent Researcher, 08000 Barcelona, SpainDepartment of Veterinary Medicine, University of Bari Aldo Moro, 70121 Bari, ItalyDepartment of Veterinary Medicine, University of Bari Aldo Moro, 70121 Bari, ItalyDepartment of Veterinary Medicine, University of Bari Aldo Moro, 70121 Bari, ItalyDepartment of Veterinary Medicine, University of Bari Aldo Moro, 70121 Bari, ItalyOvarian Remnant Syndrome (ORS) refers to a condition affecting spayed females, characterized by clinical signs typically seen in intact bitches. In this report, Callie, a 6-year-old spayed female German Shepherd, was presented to the Veterinary Teaching Hospital at the University of Bari for a specialist examination due to serosanguineous discharge from the vulva. All diagnostic tests recommended in the literature were performed to diagnose ORS. Notably, the Anti-Müllerian Hormone (AMH) assay, considered the gold standard for ORS diagnosis, was used, and the dog tested negative based on the established bibliographic cut-off values. However, advanced diagnostic techniques, including CT scans and laparoscopy, were performed, and histological examination ultimately confirmed the presence of ovarian tissue in the dog’s abdominal cavity. This clinical case underscores the importance of combining hormonal tests with advanced imaging and surgical diagnostics to ensure accurate diagnosis. It highlights the limitations of relying solely on AMH values and emphasizes the need for further research into diagnostic tests, their cut-off values, and the role of collateral examinations to achieve definitive diagnoses in cases where hormonal assays yield inconclusive results.https://www.mdpi.com/2076-2615/15/3/311anti-müllerian hormonebitchovariectomysex hormones
spellingShingle Matteo Burgio
Lluis Ferré-Dolcet
Alice Carbonari
Lorenza Frattina
Annalisa Rizzo
Vincenzo Cicirelli
Unexpected Basal Anti-Müllerian Hormone Concentrations in a 6-Year-Old Bitch Presenting an Ovarian Remnant
Animals
anti-müllerian hormone
bitch
ovariectomy
sex hormones
title Unexpected Basal Anti-Müllerian Hormone Concentrations in a 6-Year-Old Bitch Presenting an Ovarian Remnant
title_full Unexpected Basal Anti-Müllerian Hormone Concentrations in a 6-Year-Old Bitch Presenting an Ovarian Remnant
title_fullStr Unexpected Basal Anti-Müllerian Hormone Concentrations in a 6-Year-Old Bitch Presenting an Ovarian Remnant
title_full_unstemmed Unexpected Basal Anti-Müllerian Hormone Concentrations in a 6-Year-Old Bitch Presenting an Ovarian Remnant
title_short Unexpected Basal Anti-Müllerian Hormone Concentrations in a 6-Year-Old Bitch Presenting an Ovarian Remnant
title_sort unexpected basal anti mullerian hormone concentrations in a 6 year old bitch presenting an ovarian remnant
topic anti-müllerian hormone
bitch
ovariectomy
sex hormones
url https://www.mdpi.com/2076-2615/15/3/311
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