University of Cambridge study identifies Barrett’s oesophagus as universal precursor to common esophageal cancer

Cambridge scientists find Barrett's oesophagus is the source of all common esophageal cancers, opening new doors for early molecular detection and prevention.

By: AXL Media

Published: Apr 16, 2026, 7:55 AM EDT

Source: Information for this report was sourced from University of Cambridge

The Identification of a Universal Pre-Cancerous Origin

Researchers at the University of Cambridge have produced the most definitive evidence to date linking a condition known as Barrett’s oesophagus to every case of esophageal adenocarcinoma (OAC). Published in Nature Medicine, the study addresses a long-standing medical mystery: why nearly half of patients diagnosed with OAC show no visible signs of the pre-cancerous "pink patches" associated with Barrett’s during an endoscopy. Professor Rebecca Fitzgerald from the Li Ka Shing Early Cancer Institute explains that because cancer evolves over many years, proving this universal link provides a critical window of opportunity to intervene before the disease becomes life-threatening.

Analyzing Genomic Blueprints Across Patient Groups

To confirm whether OAC could arise through alternative pathways, the research team conducted a massive analysis of data from 3,100 patients across 25 UK centers. They performed whole genome sequencing on 710 individuals and examined the evolutionary history of tumors in 87 patients through multiple samples. The team hypothesized that if an alternative route to cancer existed, those patients would exhibit different DNA mutations or genomic patterns. Instead, the researchers found that the cellular "identity" and mutational profiles were virtually identical across all participants, regardless of whether a Barrett’s diagnosis was physically visible at the time of surgery.

The Destruction of Pre-Cancerous Evidence

The study reveals that the absence of visible Barrett’s oesophagus in many patients is likely due to the tumor itself. As the cancer grows and becomes more advanced, it physically destroys the original Barrett’s tissue, effectively erasing the evidence of its own precursor. Dr. Shahriar Zamani, a joint first author of the study, noted that patients who lacked visible signs of the condition typically presented with more advanced stages of cancer. This indicates that the "missing" pre-cancer was simply consumed by the progressing malignancy rather than being absent from the start.