A dermatome is an area of skin that gets its sensation from a specific spinal nerve root. Spinal nerves exist in 31 pairs, one on each side of the spine. These nerves send signals for things like ...

When a 60-year-old woman with severe abdominal pain shows positive Carnett’s and pinch signs, physicians suspect ACNES — but ...

This is because each spinal nerve root—one on each side of the body—services a specific area of skin called a dermatome. When a shingles outbreak occurs, only that dermatome on that side of ...