Battiato, P

Longo, Maurizio

Manfredi, Martina

Panopoupolos, Ioannis

Schwarz, Tobias

Thierry, Florence

English

Introduction: Ovarian neoplasia is uncommon in dogs, with an overall prevalence up to 1.4% of all canine tumors, increasing to 6.25% in intact bitches. Considered the reported favorable prognosis, surgical treatment is recommended even in advanced cases.This multicentric case series aims to describe the Computed Tomography (CT) features and metastatic pathways of ovarian neoplasia in dogs through a systematic approach.Methods: The CT images of 9 intact bitches from 5 referral centers were retrospectively reviewed and reported by a board-certified radiologist following the consensus-based lexicon developed for CT evaluation of ovarian cancer in human patients. Results: Results included 7 unilateral (4 left, 3 right) and 2 bilateral neoplasia, with prevalent mid-abdominal localization (7/9), mass effect on the surrounding intestinal loops (8/9) and heterogenous pre- and post-contrast appearance. Peritoneal stranding (9/9) and effusion (7/9) were frequent findings. The most common adnexal lesion was the presence of a tortuous ovarian artery (8/9), which could be helpful to identify the ovarian origin of complex masses. Sternal lymph nodes were the most altered nodes (6/9). Metastatic lesions were found in 5 cases (55%), with concurrent signs of tumor rupture and peritoneal effusion in 4 dogs. However, distant metastases were mainly secondary to hematogenous spread (3) compared to local implant (1), differently from human literature.Conclusion: The human lexicon for ovarian cancer CT evaluation could be effectively applied in veterinary medicine to standardize imaging reports, providing also valuable data to guide patient treatment and defying prognosis.<br/

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     Edinburgh Research Explorer                                      Computed tomography of ovarian neoplasia in dogs: a proposedsystematic approach to imaging report.Citation for published version:Manfredi, M, Panopoupolos, I, Battiato, P, Schwarz, T, Thierry, F & Longo, M 2023, 'Computed tomographyof ovarian neoplasia in dogs: a proposed systematic approach to imaging report.', International VeterinaryRadiology Association / European Veterinary Diagnostic Imaging Joint Scientific Conference, Dublin,Ireland, 18/06/23 - 23/06/23 pp. 107-108.Link:Link to publication record in Edinburgh Research ExplorerDocument Version:Peer reviewed versionGeneral rightsCopyright for the publications made accessible via the Edinburgh Research Explorer is retained by the author(s)and / or other copyright owners and it is a condition of accessing these publications that users recognise andabide by the legal requirements associated with these rights.Take down policyThe University of Edinburgh has made every reasonable effort to ensure that Edinburgh Research Explorercontent complies with UK legislation. If you believe that the public display of this file breaches copyright pleasecontact openaccess@ed.ac.uk providing details, and we will remove access to the work immediately andinvestigate your claim.Download date: 30. Jul. 2023Abstract Computed tomography of ovarian neoplasia in dogs: a proposed systematic approach to imaging report. Introduction: Ovarian neoplasia is uncommon in dogs, with an overall prevalence up to 1.4% of all canine tumors, increasing to 6.25% in intact bitches. Considered the reported favorable prognosis, surgical treatment is recommended even in advanced cases. This multicentric case series aims to describe the Computed Tomography (CT) features and metastatic pathways of ovarian neoplasia in dogs through a systematic approach. Methods: The CT images of 9 intact bitches from 5 referral centers were retrospectively reviewed and reported by a board-certified radiologist following the consensus-based lexicon developed for CT evaluation of ovarian cancer in human patients.  Results: Results included 7 unilateral (4 left, 3 right) and 2 bilateral neoplasia, with prevalent mid-abdominal localization (7/9), mass effect on the surrounding intestinal loops (8/9) and heterogenous pre- and post-contrast appearance. Peritoneal stranding (9/9) and effusion (7/9) were frequent findings. The most common adnexal lesion was the presence of a tortuous ovarian artery (8/9), which could be helpful to identify the ovarian origin of complex masses. Sternal lymph nodes were the most altered nodes (6/9). Metastatic lesions were found in 5 cases (55%), with concurrent signs of tumor rupture and peritoneal effusion in 4 dogs. However, distant metastases were mainly secondary to hematogenous spread (3) compared to local implant (1), differently from human literature. Conclusion: The human lexicon for ovarian cancer CT evaluation could be effectively applied in veterinary medicine to standardize imaging reports, providing also valuable data to guide patient treatment and defying prognosis.  References Shinagare AB, et al. "Ovarian cancer reporting lexicon for computed tomography (CT) and magnetic resonance (MR) imaging developed by the SAR Uterine and Ovarian Cancer Disease-Focused Panel and the ESUR Female Pelvic Imaging Working Group." European Radiology 32.5 (2022): 3220-3235. Goto S, et al. "A retrospective analysis on the outcome of 18 dogs with malignant ovarian tumours." Veterinary and Comparative Oncology 19.3 (2021): 442-450.  

Computed tomography of ovarian neoplasia in dogs: a proposed systematic approach to imaging report.

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Computed tomography of ovarian neoplasia in dogs: a proposed systematic approach to imaging report.

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