Severe Frostbite Due to Extreme Altitude Climbing in South America: A Case Report.

Frostbite is a tissue injury secondary to freezing that can currently be categorized using two schemes (Cauchy and clinical scheme). However, we present a fourth-degree frostbite case with overlapping features between both classifications, generating difficulty in categorizing it using either. We wanted to raise awareness of such an atypical presentation and propose employing both classifications to define the extent and compromise of frostbite more appropriately.