Scabies. A. Sarcoptes scabiei specimen. B. Close-up of a scabies burrow. Note the large scaly patch at the left due to scratching. The scabies mite traveled toward the upper right and can be seen at the end of the burrow (arrow). C. Scabies of the finger. D. Norwegian scabies on hands of a patient with AIDS.

Scabies examples with corresponding letters

Courtesy of Chris T. McAllister