A case of suspected subcorneal pustular dermatosis in a French bulldog

We report a case of subcorneal pustular dermatosis in a dog with characteristic clinical symptoms and histopathological findings. Papule and pustule formations were observed throughout the body. Aseptic pustular dermatosis was diagnosed based on bacterial culture tests. A histopathological examination revealed subcorneal pustule formation. The dog had flea bites and heat stroke before the development of pustules; furthermore, no pustules were found during or immediately after administering the treatment specific to these conditions. This confirms that the lesions we observed were in the early stages of their development. Previous case reports have indicated that the early stages of this condition are not necessarily accompanied by itching. The patient’s condition improved rapidly after treatment with dapsone.