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[bioontology-support] Squamous cell carcinoma child relationships

Ray Fergerson rayferg at
Thu Oct 1 16:18:13 PDT 2015


When I go to the UMLS browser, and look up the “skin of face” class in SNOMED US in the “basic view” and then expand the “relations” section, the very first one I see is:

CHD | isa | SNOMEDCT_US | Squamous cell carcinoma of skin |


This is where we got the relation that we display.


From: bioontology-support [mailto:bioontology-support-bounces at] On Behalf Of Brian Cajes
Sent: Thursday, October 1, 2015 3:44 PM
To: support at
Subject: [bioontology-support] Squamous cell carcinoma child relationships

Hello, attached is a screenshot of the hierarchy for Squamous cell carcinoma.  We can see from this hierarchy that "Squamous cell carcinoma of skin of face" is a child of "Squamous cell carcinoma”.  When we inspect the relationship from the UMLS dataset we do not see this hierarchy present in any of the ontologies.  Can you inform as as to how this relationship was derived and from what data sources?

Data Architect, Regeneron Genetics Center
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