The reliability of acid fast stained smears of gastric aspirate specimens
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Updated: Aug 15, 2026

Mouse Models Of Helicobacter Infection And Gastric Pathologies
Published on: October 18, 2018
1Department of Pathology, Vancouver General Hospital, B.C., Canada.
Abstract:
A 23-year retrospective study of acid fast stains of unconcentrated gastric aspirate specimens revealed a specificity of 99% and a sensitivity of 30%. All positive smears were from patients with culture-proven mycobacterial disease. Although the sensitivity is low, a positive smear allows a significantly earlier identification of patients with mycobacterial infections when compared to culture.
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