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Specimen Considerations in Molecular Oncology Testing.

Qiong Gan1, Sinchita Roy-Chowdhuri1

  • 1Department of Anatomic Pathology, The University of Texas MD, Anderson Cancer Center, 1515 Holcombe Boulevard, Houston, TX 77030, USA.

Clinics in Laboratory Medicine
|September 23, 2022
PubMed
Summary
This summary is machine-generated.

Choosing the right cancer specimen is crucial for accurate molecular oncology testing. This review guides labs on selecting optimal samples for diagnostic, prognostic, and therapeutic information in precision medicine.

Keywords:
Molecular testingSpecimenTargeted therapyTissue journey

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Area of Science:

  • Oncology
  • Genomics
  • Clinical Pathology

Background:

  • Accurate cancer diagnosis and molecular profiling are essential for precision medicine.
  • Molecular oncology testing analyzes tumor genomes for diagnostic, prognostic, and therapeutic insights.
  • Selecting appropriate clinical specimens is critical for reliable molecular testing.

Purpose of the Study:

  • To review and evaluate different clinical specimen types for molecular oncology testing.
  • To provide guidance for laboratories on optimal specimen selection.
  • To assess the strengths and weaknesses of various sample types in relation to procurement, processing, and pre-analytic factors.

Main Methods:

  • Literature review of studies on clinical specimen types for molecular oncology.
  • Analysis of procurement, processing, and pre-analytic variables for different sample types.
  • Evaluation of specimen suitability for various molecular test platforms.

Main Results:

  • Different specimen types (e.g., fresh-frozen tissue, formalin-fixed paraffin-embedded tissue, liquid biopsies) have unique advantages and disadvantages.
  • Pre-analytic variables significantly impact the quality and utility of molecular data.
  • Matching specimen type to specific molecular assays is crucial for test performance.

Conclusions:

  • Optimal clinical specimen selection is paramount for successful molecular oncology testing.
  • Laboratories must carefully consider pre-analytic factors and assay requirements when choosing specimens.
  • Informed specimen selection enhances the diagnostic, prognostic, and therapeutic value of molecular testing in cancer care.