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Dermatologic manifestations of tick bites and tickborne
disease are not commonly encountered. However, recognition of the signs and histopathologic conditions of tick bites can be important to the diagnosis and management of small animal diseases. Understanding the local nodular inflammatory reaction to a tick bite can allay the owner’s fear that a newly recognized nodule may be a malignant growth. Additionally, recognition of tick bites and pathognomonic dermatologic changes may provide important evidence in making a diagnosis of tick-transmitted diseases.