Imprint cytology: a useful screening test for diagnosis of Helicobacter pylori in resource poor settings

BMC Research Notes
Piyumali Sandareka ArachchiChinthika Prabhashinie Gunasekara

Abstract

The study aimed to compare the usefulness of two staining methods for imprint cytology for diagnosis of Helicobacter pylori infection. Gastric biopsy specimens (from dyspeptic patients attending routine upper gastrointestinal endoscopy) were placed on glass slides to obtain imprints. The imprints were stained with Toluidine blue and Giemsa stains separately and observed under ×400 magnification using a light microscope. Imprinted biopsies were sectioned and stained with H & E stain and Giemsa stain for histological analysis. Diagnosis of H. pylori infection in both imprint and histological sections were confirmed by a consultant pathologist. The sensitivity, specificity, positive predictive value and negative predictive value of each stain were calculated and benchmarked against histological diagnosis. Of the 55 dyspeptic patients enrolled in the study, 5 were positive for H. pylori by Toluidine blue stain and 4 by Giemsa stain. The sensitivity of Toluidine blue stain (57.1%) was higher than Giemsa stain (42.9%) while the specificity of both stains was equal (97.9%). Giemsa stain gave a better discrimination for identification of H. pylori bacteria among the mucosal background. Imprint cytology is a rapid, simple and cost effec...Continue Reading

References

Apr 1, 1993·Postgraduate Medical Journal·S P MisraS C Gupta
Dec 22, 2004·Journal of Gastroenterology and Hepatology·Pinit KullavanijayaPongsapeera Suwanagool
Aug 28, 2012·Journal of Oral and Maxillofacial Pathology : JOMFP·Gokul Sridharan, Akhil A Shankar

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BETA
biopsy
biopsies
PCR

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