The distal extremity of the canine limb (ie, the paw) is composed of distinct anatomic structures and sites—the haired skin of the dorsal carpus and tarsus, the more glabrous palmar or plantar interdigital epidermis between the footpads, the footpads, the ungual or claw fold, and the claw—that each can suffer unique dermatoses. Dogs are often presented with concerns of a clinical “foot skin problem.” It is the clinician’s responsibility to determine which tissue(s) is affected and which disease(s) is the most likely cause.
A partial list of causes of crusted paw in the dog includes:
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