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[bioontology-support] [BioPortal] Feedback from Mikkel I. Christensen

John Graybeal jgraybeal at
Wed Feb 27 11:32:00 PST 2019

I'm sorry Mikkel, but we are unable to help you with the specifics of this ontology.

I encourage you to contact the ontology contact given on the ontology summary page ( In this case that is "MedDRA MSSO, mssohelp at<mailto:mssohelp at>".

That contact will be more familiar with the ontology itself, and may be able to respond to your question.


On Feb 27, 2019, at 12:17 AM, support at<mailto:support at> wrote:

Name: Mikkel I. Christensen

Email: mikkelch at<mailto:mikkelch at>




I am a third year medical student in Denmark.
While writing a report on the effect of Elotuzumab vs Carfilzomib in the treatment of relapsed and/or refractory Multiple Myeloma patients, I came across some terms in the adverse effects(AE) section that caused me some confusion.
I have two oberservations which i hope you could shed some light on

1) In one study (DOI: 10.1002/cncr.31680), they list in the same table two AE's (Lymphocytopenia vs Lymphopenia),which share a similar name and when you google the difference, there seem to be none. Lymphocytopenia is listed under "common hematologic toxic effects" and Lymphopenia is listed under "common non-hematologic adverse effects"
The values are different, but what is the difference between the two terms?

2)In another study (DOI: 10.1200/JCO.2017.
76.5032) They list Thrombocytopenia under "most common events" and Hematopoetic Thrombocytopenia under "Events of interest" again with different values. Again, confusion strikes me. What is the difference between those two terms?

I hope you can help
Best regards

bioontology-support mailing list
bioontology-support at<mailto:bioontology-support at>

John Graybeal
Technical Program Manager
Center for Expanded Data Annotation and Retrieval /+/ NCBO BioPortal
Stanford Center for Biomedical Informatics Research

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