Description: This field has a surface of 0.25 cm². You can count nearly 50 mites. In banal scabies, the patient is infected by 10 to 20 mites. We can extrapolate that this patient had about 1 million parasites.

History: This 93 years old lady had a long lasting pruritic eruption. It was diffused, with a dry erythema, and some psoriasiform crusted plaques, for example on the elbows. The dermoscopic exam found immediatly the sarcoptes: it was a crusted scabies.