Rupture of the ulnar collateral ligament of the metacarpophalangeal joint of the thumb.
Bostock
S H
SH
Morris
M A
MA
D017885:Collateral Ligaments / Q000293:injuries*; D006801:Humans; D008662:Metacarpophalangeal Joint / Q000293:injuries*; D012421:Rupture; D013933:Thumb / Q000293:injuries*