Some are popular on LJ (and not only) pleasure - to dig out old photos and paint a variety of terrible diagnoses. The more, the better.
Thus, the slope of Venus Botticelli's possible model, Simonetta Vespucci, "places" tuberculosis lesions from the shoulder belt:
Quite possibly, by the way, truth and poor Simonetta died young because of tuberculosis. Although it is possible and Botticelli is a bit nakosyachil with anatomy. No wonder, although he is a Renaissance expert, it is still the first and overall anatomical method has not worked.