Most likely diagnostic options for a single crease on pinky finger - nearly always this involves 3 finger bones, so there is no bone missing (ranked by 'weight' for the general population):
- ASSOCIATED MEDICAL CONDITIONS:
• trisomy 21 (= Down syndrome) [~18% | 1:700 | weight: 0,51]
• trisomy 18 (= Edwards syndrome) [~80% | 1:6K | weight: 0,27]
• trisomy 13 (= Patau syndrome) [~5% | 1:15K | weight: 0,007]
• Cornelia de Lange syndrome [~1% | 1:15K | weight: 0,001]
• partial trisomy 9p [~40% | 1:1M | weight: 0,0008]
- ASSOCIATED PSYCHOLOGICAL CONDITIONS:
(Unknown)
[1st figure = prevalence hand sign in condition | 2nd
figure = prevalence condition in GP | 3rd figure =
estimated hand sign weight for condition relative
to GP (>0,5 = present in majority of GP)]
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Quick summary:
a large majority (~78%) of hands featured
with a single crease on one or both 5th fingers
involves trisomy 21 or trisomy 18.
PS. Cases of trisomy 18 rarely reach adulthood, therefore
trisomy 21 is the most likely option in adults
(indicated by the presented statistics).
[In every 100 single crease cases in the general population (GP) you can expect to find
about 51 trisomy 21 cases, 27 trisomy 18 cases, etc.]
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