The sequence of molecular changes in HNSCC progresses in following order : normal squamous mucosa squamous hyperplasia dysplasia carcinoma in situ invasive carcinoma metastasis
Two dimensional slice section are composed of pixels which are the smallest picture elements. The more the pixels in a certain distance the better the resolution. Currently the highest resolution
Intrathecal dyes combined with endoscopic techniques Historically used dyes are: methylene blue Indigo carmine Radioactive labelled markers Messerklinger combined intrathecal fluoreceins in mixed c 10 ml of CFS from a