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[bioontology-support] [BioPortal] Feedback from twicker

support at support at
Mon Jan 28 14:07:49 PST 2013

Name: twicker

Email: thomas.a.wicker at


Question - has any consideration been given to allowing a "many-to-one" mapping? Specifically: mapping a term in one ontology to multiple terms in another ontology - and potentially to multiple multi-part "terms," using "AND"s and "OR"s.

For example, take this NCI term:

As its definition says, "Stage IIA includes: (T0, N1, M0); (T1, N1, M0); (T2, N0, M0). T0: No evidence of primary tumor. T1: Tumor 20 mm or less in greatest dimension. T1 includes T1mi. T1mi: Tumor 1 mm or less in greatest dimension. T2: Tumor more than 20 mm but not more than 50 mm in greatest dimension. N1: Metastasis to movable ipsilateral level I, II axillary lymph node(s). N0: No regional lymph node metastasis. M0: No clinical or radiographic evidence of distant metastasis. M0 includes M0(i+). (AJCC 6th and 7th Eds.)"

So - there *is* a mapping of the NCI term to SNOMED-CT; however, it involves this (I've shortened the breast-specific SNOMED-CT terms to just a combo of letters; you'll see why):
[Stage IIA:NCI] = 

This could also be implemented by simply allowing the use of the multi-part "AND" terms within a single mapping, where each "OR" clause gets its own mapping line.

Thoughts? Thanks for your time!

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