American Urological Association - Scabies
- Agent: Sarcoptes scabei (human itch mite).
- Appearance: image A.
- Clinical: Severe itching that may be worse at night; scaly red patches may be papular, nodular, or excoriated, and are caused by burrowing of the female mite; vesicles may be visible at the end of the burrows.
- Transmission: prolonged personal contact.
- Definitive diagnosis requires identification of the mite or its products.
- Demonstration of the eggs containing larvae or of the egg shells (best seen on PAS) is often made.
- Other findings: epidermal spongiosis (edema) and dermal eosinophils.