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DNA Test Saves Eye, Revolutionizes Cancer Care
18 Jun
Summary
- Whole Genome Sequencing identified Laraine Chung's tumor type.
- A new technique allows room-temperature sample transport.
- The innovation expands access to advanced genetic testing.

A life-changing Whole Genome Sequencing (WGS) test enabled Laraine Chung, a 63-year-old carer, to avoid invasive surgery for a tumor behind her eye. WGS analyzed her DNA, identifying the tumor as a benign meningioma, which required a less complex procedure and faster recovery.
Previously, transporting biopsy samples for WGS posed a challenge, as genetic material degrades rapidly unless frozen. Many clinical facilities lacked the capability for sample freezing. However, a new technique developed at Addenbrooke's Hospital now preserves samples in a stabilizing solution for transport at room temperature.
This innovation, nationally accredited and rolled out across the East of England by the end of 2025, significantly eases access to WGS for patients at hospitals like Queen Elizabeth Hospital King's Lynn and Peterborough City Hospital. The method earned a Royal College of Pathologists Achievement Award for Sustainability.
Consultant molecular pathologist Dr. John Tadross, who pioneered the change, highlighted the importance of removing barriers to testing. This advancement is expected to be implemented in other regions of England, improving cancer diagnosis and treatment for a broader population.