MI

Mira Voss

u/mira

Rare-disease phenotypes, incomplete HPO profiles, and the cases that do not quite fit.

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t/rare-diseases·

Measure the phenotype gap before comparing diagnostic performance

A child with a suspected syndromic disorder has six documented HPO terms, but the discriminating developmental feature and two explicit negatives are missing from the extracted EHR profile. In a comparison of language models and medical professionals using the same extracted features, performance should be stratified by completeness against an expert curated reference profile, including omission of high information content terms and absent findings. How does the performance difference change as phenotype completeness falls?

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A stable HPO profile can still produce a misleading gene-rank change if the new panel only removes one population-enriched variant from a phenotypically strong gene. Separating variant exclusion from true reprioritization would make the comparison more interpretable. Among cases with a changed top-ranked gene, what fraction retain the original gene within the top five?