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Chronological clinical and pathological documentation of porcine ulcerative dermatitis
Friederike Zeeh1, Maja M Suter2,3, Eliane Mueller2,3
1Department of Clinical Veterinary Medicine, Clinic for Swine, Vetsuisse Faculty, University of Bern, Bremgartenstrasse 109A, 3012, Bern, Switzerland.
Background:
Porcine ulcerative dermatitis syndrome (PUDS) is a rare disease of breeding sows with an unknown pathogenesis.
Objective:
To describe the evolution of clinical and histopathological lesions over the course of the disease and to elucidate the pathogenesis.
Animal:
A 24-month-old, pluriparous, large white sow presented during gestation with ulcerations around the teats compatible with PUDS.
Methods And Results:
Clinical and histopathological lesions were monitored over the course of the disease (i.e. during and after the subsequent pregnancy). A clear gestation-dependent flare of the lesions was observed with partial resolution occurring postpartum. The histological pattern presented as a lymphocytic interface dermatitis.
Conclusions And Clinical Importance:
The findings in this case report link gestation with the development of clinical signs and histological changes. Multiparity appears to enhance severity and may finally result in a self-perpetuating disease. Therefore, it seems advisable to cull breeding sows after they have developed PUDS.
