# CNSide Diagnostics

Source: https://onco.cc/companies/cnside-diagnostics/  
OnCo record `cnside-diagnostics` (Company). Data CC BY-NC 4.0, attribute "Data from OnCo (onco.cc)"; commercial use needs a licence.

## TL;DR

CNSide captures tumour cells from cerebrospinal fluid to diagnose and track leptomeningeal disease, cancer spread to the linings of the brain and spine that conventional cytology often misses.

## Summary

CNSide Diagnostics runs a cerebrospinal fluid assay that captures and counts circulating tumour cells and profiles their molecular markers, used to diagnose leptomeningeal metastases and to follow them over time during treatment. Future of Cancer Care Today notes it often detects cases that conventional cytology misses; it is physician-ordered.

## Fields

- Kind: Company
- Last checked: 2026-09-11
- Tags: ctgov-sponsor; fcct-directory
- HQ: United States (city not published)
- Type: diagnostics
- Website: https://cnsidediagnostics.com/

## Sources

- Official website: https://cnsidediagnostics.com/
- Listed on Future of Cancer Care Today (Sijbrandij Foundation): https://sijbrandijfoundation.org/fcct

## Connected records

- technologies: [Circulating tumour cell capture](https://onco.cc/technologies/ctc-capture/), [Liquid biopsy (ctDNA)](https://onco.cc/technologies/liquid-biopsy/)

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JSON: https://onco.cc/api/v1/entities/cnside-diagnostics.json