Frostbite injury of the hand at day 0: Initial lesion extending beyond the metacarpophalangeal joints (Grade 4). In the case pictured above, there is involvement of the entire hand, and injury extends just proximal to the wrist.
Reproduced from: Cauchy E, Chetaille E, Marchand V, Marsigny B. Retrospective study of 70 cases of severe frostbite lesions: a proposed new classification scheme. Wilderness Environ Med 2001; 12:248. Illustration used with the permission of Elsevier Inc. All rights reserved.
