Rats/Mice Ulcerative Pododermatitis Study Guide
Overview and Clinical Importance
Ulcerative pododermatitis (commonly called bumblefoot or sore hocks) is a chronic, granulomatous, ulcerative dermatitis affecting the plantar (and occasionally palmar) surfaces of the feet in rats and mice. This condition is one of the most common integumentary disorders encountered in pet rodents and laboratory animals. Secondary bacterial infection, primarily with Staphylococcus aureus, frequently complicates the condition and can lead to osteomyelitis, septicemia, and death if left untreated.
Understanding ulcerative pododermatitis is essential for the NAVLE because it represents a classic example of a husbandry-related disease with multisystemic implications. The condition demonstrates the critical relationship between environment, host factors, and opportunistic infection.
Etiology and Pathophysiology
Primary Pathophysiology
The pathogenesis of ulcerative pododermatitis begins with ischemic necrosis of soft tissues compressed between bone and hard surfaces. The sequence typically follows this pattern:
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