Patiënt lijdend aan de huidziekte 'phtheiriasis corporis' before 1881

This anonymous photograph, "Patiënt lijdend aan de huidziekte 'phtheiriasis corporis'" (Patient suffering from the skin disease "phtheiriasis corporis"), from before 1881, depicts the back of a patient suffering from the parasitic skin disease known as "phtheiriasis corporis," often called "crab lice." The image is a medical illustration and serves as a visual record of the condition. This type of image was common in the 19th century as a way to document and study various ailments.