OnCo
ideasIdea

Slide scanners in district hospitals wired to pathologists anywhere

Many countries have one pathologist per million people. Putting a slide scanner in each district lab and sending images to a pooled group of pathologists could give a cancer diagnosis in days instead of months.

The bottleneck for cancer diagnosis in much of Africa and South Asia is the pathologist, not the tissue sample. Whole-slide scanners now cost a fraction of what they did, and pathology images travel well. A national or regional network would standardise tissue processing at district labs, scan every slide, route to a shared roster of pathologists (including diaspora volunteers and partner institutions), and track turnaround time as the primary metric. Several pilot networks exist; the gap is scale and sustainable financing.

Hypothesis
Districts connected to a telepathology network will reduce median biopsy-to-report time to under ten days from more than four weeks, with discordance on second review under 5%.
Rationale
Teleradiology built a global industry on the same logic. Histology processing is cheap and teachable; interpretation is the scarce, movable part.
What would test it
A stepped-wedge national rollout measuring turnaround time, proportion of cancers with a histological diagnosis before treatment, and cost per case, compared with districts not yet connected.
Maturity
being tested at scale
Who has to act
engineering
Cost to try
Medium ($1M to $50M)
Years to first evidence
2
Bottlenecks it attacks

Connected

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