PMC4895063_01
(a and b) Complex papillary pattern along with singly scattered cells (a: Papanicolaou, x40). Fibrovascular cores are also visible (b: May-Grunwald-Giemsa, x100). (c) Dispersed cells displaying cuboidal to columnar cells with eccentrically placed nuclei exhibiting mild pleomorphism. An occasional mitotic figure is also seen at the top of the field (May-Grunwald-Giemsa, x400). (d) Cells showing vacuolated cytoplasm with soap bubble appearance (May-Grunwald-Giemsa, x400)
CJ-13-12-g001.jpg
PMC4895063_01_CJ-13-12-g001.jpg
F1
Most of the cells had dense cytoplasm with a fair number of them displaying small vacuolated, soap bubble-like appearance of the cytoplasm [Figure 1].
(a) Some cells show eccentric nuclei with bright eosinophilic mucin vacuole (May-Grunwald-Giemsa, x400). (b) Vacuolated cells showing periodic acid-Schiff with acid digestion positivity (PAS-AD, x400). (c) A partially cystic and partially solid mass with friable papillary projections. (d) Sections showing cuboidal to columnar cells with mild cellular atypia displaying pseudostratification (H and E, x100)
CJ-13-12-g002.jpg
PMC4895063_01_CJ-13-12-g002.jpg
F2
These cells were positive for periodic acid-Schiff with acid digestion (PAS-AD) [Figure 2]. At places, pseudostratification with mitosis was also seen [Figure 2d].