A cluster of rather uniform medium sized cells in the FNAB smear. Nuclei with small nucleoli are oval, with slight variation in size, some of them exhibiting grooves. The cytoplasm is moderate or more abundant, vacuolated, cell borders can be appreciated (Papanicoulaou, orig. magnif. ×40).
Volavšek et al. Diagnostic Pathology 2013 8:108 doi:10.1186/1746-1596-8-108