Sydney crease

Syd·ney crease

(sid'nē), a variation of the proximal transverse palmar flexion crease that reaches the ulnar side of the palm; associated with acute lymphocytic anemia in early childhood, rubella embryopathy, and Down syndrome. Synonym(s): Sydney line

Syd·ney crease

(sidnē krēs) Variation of the proximal transverse palmar flexion crease that reaches the ulnar side of the palm.