case_images: PMC9981353_01
case_images: 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.
case_images: cureus-0015-00000034476-i01.jpg
case_images: PMC9981353_01_cureus-0015-00000034476-i01.jpg
case_images: FIG1
case_images: However, evaluation of his palms showed callosities located bilaterally on the distal ventral hands and proximal second, third, and fourth digits (Figures 1, 2).
case_images: 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.
case_images: cureus-0015-00000034476-i02.jpg
case_images: PMC9981353_01_cureus-0015-00000034476-i02.jpg
case_images: FIG2
case_images: However, evaluation of his palms showed callosities located bilaterally on the distal ventral hands and proximal second, third, and fourth digits (Figures 1, 2).