Empowering pathologists to diagnose with speed and confidence.

Overview

I designed and shipped Region Comments, a collaboration tool on PathAI's Patient Diagnostics platform. It cut second-opinion turnaround times by ~45% and noticeably increased the number of cases pathologists sign out daily.

Company
PathAI
Team
Me, Sandy Zhu, Riley Hunter, Jamie Harisiades, 5× SWE
Focus area
User Research, Stakeholder Alignment, Interaction Design, Rapid Prototyping, User Testing, Handoff
AI Sight DX, PathAI's digital pathology platform.
A pathologist reviewing a digital slide in the lab.
Region Comments surfaced in the slide-viewer toolbar.
The slide panel keeps discussion anchored to diagnostic context.

Draw directly on the slide with your cursor to add a comment.

Add Region Comment (C)
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I think this region of the cell is cancerous. Just for reference this patient has
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Mike Drage

2021-04-22 09:32

I think this region of the cell is cancerous. Just for reference this patient has stage 4 melanoma okay?

  • Interactive
Comment-card states from entry through completed discussion.
Tab order guides pathologists through the commenting workflow.
The accession discussion panel gathers case-level collaboration.
Multi-slide views preserve context across an accession.
An email notifies a pathologist when they are tagged in a response.
Acceptance and rejection reasons support the give-and-take of review.
When regions overlap, the most recently created region sits on the upper layer. Hovering the intersection highlights that newer region.
On release, the new region is complete.
Pointer over the overlap highlights the newer region. It owns the top z-index, visually and interactively.
  • Interactive
Special region-selection edge cases defined for production.
Impact

Region Comments cut second-opinion turnaround by ~45%, and adoption spread beyond consults into QA, tumor boards, teaching, and research.

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© 2026 Mayank Kinger

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