A Dermoid Sinus is a tubular skin defect also known as a pilonidal sinus. This is a rare condition. It typically shows up along the back, neck or upper spine of a dog. It is a tubular skin defect caused by a separation of skin and the nervous system and usually develops in the early stages of embryonic growth. It can be minor or deep. Some are just sacs beneath the skin’s surface, while others can affect the spinal cord. Treatment depends on the severity and location of the sinus. If there is skin secretion, then it must be cleaned and treated to avoid an infection or abscess from developing. If it becomes infected then it will need to be surgically removed. If the sinus is affecting the spinal cord or causing neurological symptoms then aggressive treatment is needed. For more information and details, talk with your veterinary clinic Oshawa, ON.