Hitchhiker thumb
http://purl.obolibrary.org/obo/HP_0001234
With the hand relaxed and the thumb in the plane of the palm, the axis of the thumb forms an angle of at least 90 degrees with the long axis of the hand. [ PMID:19125433 HPO:probinson ]
Term info
- UMLS:C1857269
hposlim_core
The condition known as "hitchhiker's thumb" means, that the distal phalanx of the thumb, when the thumb is extended (as in a "thumbs-up"), can extend backwards toward the nail and outwards at an angle of up to, or more than, 90 degrees from the thumb, whereas normally it will extend straight out with little backward bending.
With the hand relaxed and the thumb in the plane of the palm, the axis of the thumb forms an angle of at least 90 degrees with the long axis of the hand.
Abducted thumb, Hitchhiker thumb
HP:0001234