Eosinophilic granuloma is a common hypersensitive inflammatory skin disease in cats, and rare in dogs and horses. The skin biopsies of 5 years old female Cocker spaniel and 2 years old female mixed dog had the clinical signs of skin nodules with alopecia were submitted for diagnosis. Solitary skin nodules and papillary nodules were presented on the left external ear and back of Cocker spaniel and on the external ear of mixed dog, respectively. Histopathologically, epidermis of skin showed mild to severe hyperplasia with multifocal ulceration. Small to large irregular, brightly eosinophilic foci with degenerating eosinophils and homogeneous degenerated collagens were existed in the dermis of both ear and back skin. Typical 'flame figures', a mixture of degenerated collagen and degranulated eosinophils, were observed in both cases. Based on the histopathologic findings and special staining characters, 2 cases were diagnosed as canine eosinophilic granuloma. This is the first report for the eosinophilic granuloma of dogs in Korea.

The study evaluated in-vitro antibacterial activity of seabuckthorn (Hippophae rhamnoides L.)leaves using disc diffusion method against common skin and wound pathogens. Methanolic hot and cold extracts of green seabuckthorn leaves were tested against 160 microbial isolates obtained from clinical skin and wound infection cases of different animal species. Different concentrations of leaf extracts i.e. 0.5%, 2%, 3%, 4% and 5% were tested against 1×108 cfu/ml bacteria inoculated on Mueller-Hinton agar (MHA). The inhibitory effect of SBT leaf extract at 5% concentration was observed to be almost 50% as compared to the standard drugs used as positive control against isolate.