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Peer-reviewed veterinary case report

Dog vomiting blood from cancerous stomach polyp spreading to brain

By Dillon S Didehvar et al.·Published in Journal of Veterinary Internal Medicine·2024·View original on Semantic Scholar

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Original publication title: Malignant transformation and subsequent leptomeningeal carcinomatosis of a gastric polyp in a dog

Species:
dog

Plain-English summary

A 9-year-old male Scottish terrier was brought in for vomiting and occasional vomiting of blood. Over 14 months, the dog's condition worsened from a benign gastric polyp to an aggressive stomach cancer, which eventually spread to the brain and spinal cord, causing severe neurological issues. Despite attempts to manage the cancer, the dog was euthanized due to the extent of the disease. This case highlights that while gastric polyps in dogs are usually harmless, they can sometimes develop into serious cancers.

People also search for: dog vomiting blood · Scottish terrier stomach cancer · gastric polyp in dogs treatment

Abstract

Progressive carcinogenesis of a gastric polyp with transformation to gastric adenocarcinoma and subsequent development of leptomeningeal carcinomatosis is described in an adult male Scottish terrier. Presenting clinical signs consisted of vomiting with intermittent hematemesis. Surgical biopsies over the course of 14 months documented the progression from gastric polyp to minimally invasive gastric carcinoma to invasive gastric adenocarcinoma, a pathogenesis not previously documented in veterinary oncology. The patient ultimately developed neurologic pathology and was euthanized, and necropsy evaluation identified widespread carcinomatosis with accompanying leptomeningeal metastasis. As in humans, gastric polyps in dogs rarely have malignant potential.

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Original publication on Semantic Scholar: https://www.semanticscholar.org/paper/38587203