This is the same case shown in Image:Malignant lymphoma, high grade B cell 1.jpg

To illustrate the difference in color quality between different types of lighting, I shot the same frame under tungsten light (last picture) and window light (this picture). My copy stand is up against a large, bright window, so all I had to do was turn off the Photofloods, raise the miniblinds, and remove the 80B blue compensation filter normally used with daylight film under tungsten illumination. Nature accommodated me with a uniform bright overcast sky (a clear sky gives too blue a picture, and direct sunlight is too harsh and shadow-producing).