Auspitz's sign [SEP] named after
Auspitz's sign
Auspitz's sign is the appearance of punctate bleeding spots when psoriasis scales are scraped off, named after Heinrich Auspitz. This happens because there is thinning of the epidermal layer overlying the tips of the dermal papillae and blood vessels within the papillae are dilated and tortuous, which bleed readily when the scale is removed.
, and Ferdinand Ritter von Hebra (1816, Moravia 1880).
In 1863 he became a privat-docent of dermatology and syphilis, and during the following year began work in the histological institute of Carl Wedl. In 1872 he was named director of the general policlinic, and from 1875 onward, was an associate professor at the university.
A pioneer in tissue pathology, he described the pinpoint bleeding on removal of a psoriasis scale that bears his name: "Auspitz's sign". In 1885 he published an