Pathology of gastritis and gastric ulceration in the horse. Part 1: range of lesions present in 21 mature individuals.
Authors: Martineau H, Thompson H, Taylor D
Journal: Equine veterinary journal
Summary
# Pathology of gastritis and gastric ulceration in the horse. Part 1: range of lesions present in 21 mature individuals Whilst equine gastric ulcer syndrome (EGUS) is recognised as clinically significant in performance horses, understanding of the underlying histological changes remains limited, making it difficult for practitioners to interpret gross pathological findings accurately or to understand how lesions develop across different stomach regions. Martineau and colleagues examined post-mortem stomach samples from 21 mature horses, conducting detailed microscopic analysis to characterise the full spectrum of gastric pathology present. The research revealed considerable variation in lesion types and distribution patterns across the fundic, cardiac and squamous regions, with inflammation and ulceration occurring through different pathogenic mechanisms depending on anatomical location. These findings provide essential baseline data for correlating gross observations (visible during endoscopy or post-mortem examination) with microscopic reality, enabling more accurate diagnosis and mechanistic understanding of how lesions form. For practitioners managing horses with suspected EGUS, this work underscores that gastric disease is not a single entity but rather encompasses diverse pathological processes requiring region-specific interpretation when assessing endoscopic findings or formulating treatment strategies.
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Practical Takeaways
- •Understanding the histopathological basis of gastric lesions helps veterinarians better interpret gross gastroscopic findings and improve diagnostic accuracy in performance horses
- •Lesion characteristics vary by anatomical region of the stomach, suggesting different pathogenic mechanisms may be involved in different areas
- •Knowledge of normal versus pathological gastric histology is essential for early detection and management of gastric disease in high-performance horses
Key Findings
- •Comprehensive histopathological assessment of gastric lesions in 21 mature horses identified a range of pathological findings across different anatomical regions of the stomach
- •Study provides detailed characterization of gastric lesion variety and pathogenesis to enhance interpretation of gross findings and improve diagnostic accuracy
- •Histopathological examination revealed lesion diversity that correlates with specific anatomical locations within the equine stomach