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In the era of molecular pathology and precision medicine, pathological diagnosis has extended far beyond traditional morphology to the DNA and RNA level. Even trace amounts of external contamination can be exponentially amplified by technologies such as PCR and NGS, directly compromising the accuracy of test results.
For this reason, the Vertical Laminar Flow Cabinet has become an indispensable piece of equipment in pathology departments—especially in molecular pathology laboratories—serving as the sterile core of diagnostic quality control.

1. Irreplaceable Clinical Samples
   Biopsy specimens, frozen section tissues, and liquid-based cytology (TCT/LBC) samples are often limited in quantity and cannot be re-collected. Any contamination may result in the loss of critical diagnostic information.

2. Extreme Sensitivity of Molecular Testing
   Techniques such as PCR, NGS, and FISH can amplify minute nucleic acid signals. Likewise, even minimal external DNA/RNA contamination or aerosol carryover may lead to false-positive or false-negative results.

3. Direct Impact on Clinical Decisions
   Pathological diagnosis is the gold standard for many diseases, particularly cancer. Diagnostic accuracy directly influences treatment strategies and patient outcomes.

1. Molecular Pathology

• DNA and RNA extraction from FFPE or fresh tissue samples

• PCR reaction preparation and sample loading

• NGS library construction

• FISH sample pretreatment

2. Cytopathology

• Processing of liquid-based cytology (TCT/LBC) samples

• Handling of valuable body fluid specimens such as pleural effusion, ascites, and cerebrospinal fluid

3. Immunohistochemistry and Special Staining

• Aliquoting of high-value antibodies and reagents

• Manual IHC procedures requiring a controlled sterile environment

• Ensures Diagnostic Accuracy: Prevents environmental contamination at the source and safeguards reliable test results

• Protects Precious Samples: Reduces sample loss and preserves critical diagnostic material

• Supports Laboratory Accreditation: Meets clean environment requirements for CAP, ISO 15189, and other international standards

A vertical laminar flow cabinet is far more than a basic laboratory workstation. It is a critical component of the pathology quality control system, providing a stable, contamination-free working environment.
By forming a reliable sterile barrier, it plays an essential role in supporting precision diagnostics and upholding pathology as the medical gold standard.