PMC9981353_01
Pull-up palms (PUP) presenting as ventral hand and finger callosities. Distant view of palmar callosities (black arrows) on the hands of a 42-year-old man who does pull-ups for more than 30 minutes each day during the previous five years.
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PMC9981353_01_cureus-0015-00000034476-i01.jpg
FIG1
However, evaluation of his palms showed callosities located bilaterally on the distal ventral hands and proximal second, third, and fourth digits (Figures 1, 2).
Palmar callosities are the morphologic presentation of exercise-associated pull-up palms (PUP). Closer views of the right hand (A) and left hand (B) show callosities (black arrows) on the palmar distal hand and proximal second, third, and fourth digits on the right and left hands in an exercise enthusiast who does daily pull-ups. A notable asymmetry between hands is a small callosity just distal to the patient's wedding band on his left fourth digit.
cureus-0015-00000034476-i02.jpg
PMC9981353_01_cureus-0015-00000034476-i02.jpg
FIG2
However, evaluation of his palms showed callosities located bilaterally on the distal ventral hands and proximal second, third, and fourth digits (Figures 1, 2).