What is the name of the following finding? What underlying condition is it a feature of?

Answer: This image of thickened, hyperkeratotic, scaly, and fissured skin, visible on the tips and sides of the fingers and thumbs of the hand, is a finding referred to as “mechanic’s hands.” This patient has a diagnosis of antisynthetase syndrome (a type of idiopathic inflammatory myopathy).

Reference: https://www.nejm.org/doi/full/10.1056/NEJMicm2026773#:~:text=A%2037%2Dyear%2Dold%20man,of%20antisynthetase%20syndrome%20was%20made