PMC5362928_01
Day 4 post-presentation of case 1 illustrates the first indication of necrotic skin formation as seen by the yellow-gray skin discoloration that extends 5 cm cranial to the prepuce, 1 cm lateral to the scrotum and prepuce, and extends toward the lateral and caudal margins of the tail base. A tissue marker was used to outline the delineation between normal and abnormal skin for the purposes of monitoring for further progression
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The caudal ventral abdominal and perineal cellulitis showed necrotic changes on day 4, with yellow-gray skin discoloration and swelling, with a distinct demarcation between affected and non-affected tissue (Figure 1).
Day 11 post-presentation of case 1 illustrates the extent of the necrotic lesion, with the wound edges pulling away from the underlying tissue. The necrotic skin was left in place to protect the underlying tissue from fecal contamination
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The necrotic/sloughing skin was left in place to allow coverage of the underlying tissue from fecal contamination (Figure 2).
Day 30 post-presentation of case 1. The necrotic tissue has completely sloughed on its own, revealing significant wound contraction and presence of granulation tissue
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The necrotic tissue eventually completely sloughed off naturally around day 30 of hospitalization (Figure 3), revealing a well-contracted and granulated wound, at which time the cat was discharged from the hospital for further supportive care at home.
Day 57 post-presentation of case 1 illustrates complete wound healing, at which time normal anal tone was present and the fecal incontinence had resolved. The cat was neutered 2 weeks later
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The patient made a complete recovery (Figure 4), and was eventually castrated 71 days after initial presentation.
PMC5362928_02
Day 18 post-presentation of case 2 illustrates the extent of the wound at its worse. The necrotic tissue has started to slough, with a portion of necrotic skin still present
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As in case 1, conservative wound management was elected, with the cat remaining in hospital (Figure 5).
Day 18 post-presentation of case 3 illustrates the wound extent without the necrotic/sloughing skin present
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On day 18 the cat was briefly anesthetized for removal of the necrotic skin (Figure 6).