Cellulitis is a severe, deep, suppurative infection that is poorly defined and tends to dissect through tissue planes. When a foreign body enters the body, white blood cells attack the site and fight the invading agent. Sometimes, this collection of blood cells forms a packed of pus or an abscess within the body’s tissues, organs, or confined spaces. Chronic sinus tracks have been reported previously in the lumbar, paralumbar, and flank skin area in hunting dogs with grass awn and other migrating foreign bodies. Surprisingly, little information is published on histopathological changes about grass awn migration subcutaneously. This report describes histopathological characteristics of subcutaneous cellulitis of the thigh due to grass awn migration in a German shepherd dog.

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