A man who worked in a sleep clinic at a major Perth hospital pleads guilty to a dozen charges relating to footage of women getting undressed.

It had the pinpoint splotches associated with bleeding between skin layers. Doctors at the medical center, Sir Charles Gairdner Hospital in Nedlands, got to work on a diagnosis.

The 41-year-old, who described herself as paedophile Jeffrey Epstein's teenage "sex slave", was admitted last week in Perth, Western Australia.