ISSN: 2161-0681

Journal de pathologie clinique et expérimentale

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Abstrait

Xylene/Chloroform Free Microwave Tissue Processing and Staining a Non-hazardous and Time Effective Alternative

Swaroop Raj1, Divya C and Harendra Kumar

Introduction: Tissue processing using xylene/chloroform has been employed in histopathology reporting for the past 100 years. Microwave technique has not only reduced the processing time from 1 day to one hour but also doesn’t use xylene/chloroform and has been found to be on par with conventional processing. Xylene is expensive and detrimental to human health. The present study replaces chloroform with isopropanolol in tissue processing and xylene with liquid dish wash solution (LDW) in staining which is not only cheap but also non bio hazardous.
Aim: To assess the efficacy of xylene free processing (microwave) and staining versus conventional tissueprocessing and hematoxylin and eosin are staining.
Materials and methods: Two Tissue bits from 15 consecutively submitted samples at RL Jalappa Hospital after 1st Jan 2015 each of breast, cervix, lymph node, fat, thyroid, skin, alimentary tract, muscle, salivary gland, liver and kidney were taken and one was processed and stained using conventional method, other using xylene/chloroform free processing and conventional staining and other with both xylene/chloroform free processing and staining. The 495 sections were evaluated and scored by two pathologists independently for nuclear staining, cytoplasmic staining, uniformity, clarity and crispness.
Results: In the samples evaluated xylene free processing and staining seems to be on par with conventional xylene processed and stained sections terms of nuclear and cytoplasmic detail, clarity and crispness. However Xylene cleared sections showed slightly better uniform staining (p value->0.05)
Conclusion: Xylene/chloroform free processing and staining is not only a rapid but also safe alternative to conventional processing and staining using xylene. However more extensive studies need to be done on other types of tissues for validation

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