Animals, Volume 16, Issue 1
2026 January-1 - 153 articles
Cover Story: Nationwide data on canine oncology in Portugal are limited. We reviewed 17,773 biopsy submissions to a national veterinary laboratory (2020–2024), identifying 6359 histopathology-confirmed tumours that met the inclusion criteria, which were analysed by behaviour, site, and host/geographic factors. Malignant and benign neoplasms were nearly equal in proportion (50.4% vs. 49.6%), with a predominance of cutaneous/soft-tissue (58.8%) and mammary (24.1%) tumours. Dogs with malignant tumours were older, while females (58.7%) showed more malignancy. Higher odds of malignancy were observed in some pure breeds (e.g., Pug, American Staffordshire Terrier) and lower odds in others (e.g., Estrela Mountain Dog, Beagle). Findings support early biopsy of new masses, routine mammary screening in bitches, breed-aware vigilance, and continued national surveillance. View this paper - Issues are regarded as officially published after their release is announced to the table of contents alert mailing list .
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