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→Biopsy
====Biopsy====
====Biopsy====
[[Image:Gastric ulcer pathology.jpg|300px|thumb|right|''' Flow chart depicting the proposed pathogenesis of ulcerative lesions of the equine squamous gastric mucosa''. Created by Nina Rzechorzek, July 2010. ''Information sourced from Martineau ''et al.'', 2009<ref name="Martineau 2">Martineau, H, Thompson, H, Taylor, D (2009) Pathology of gastritis and gastric ulceration in the horse. Part 2: a scoring system. ''Equine Vet J'',41(7):646-51.</ref>'' ''']]
A transendoscopic gastric biopsy technique was recently validated for obtaining samples from the gastric glandular mucosa in the live horse.<ref>Rodrigues, N.L, Dore, M, Doucet, M.Y (2009) Validation of a transendoscopic glandular and nonglandular gastric biopsy technique in horses. ''Equine Vet J'', 41(7):631-5.</ref>Unfortunately this technique failed to produce samples of squamous mucosa that would be suitable for histopathological analysis.
A transendoscopic gastric biopsy technique was recently validated for obtaining samples from the gastric glandular mucosa in the live horse.<ref>Rodrigues, N.L, Dore, M, Doucet, M.Y (2009) Validation of a transendoscopic glandular and nonglandular gastric biopsy technique in horses. ''Equine Vet J'', 41(7):631-5.</ref>Unfortunately this technique failed to produce samples of squamous mucosa that would be suitable for histopathological analysis.
====Laboratory tests====
====Laboratory tests====