Digital cytopathology: A constant evolution (Comments on Capitanio et al. Digital cytology: A short review of technical and methodological approaches and applications)

Capitanio et al provide a succinct review of digital cytopathology technology with particularly good overviews of scanner focusing methodologies as well as explanations of deep focusing techniques. The aim of this letter to the editor is to briefly comment and expand on some of the information provided by these authors.