It is likely to be derived as a result of metaplasia of squamous epithelial cell
rests that are remnants of the part of the stomadeum.
Squamous cell carcinoma (SCC) is a malignant neoplasia affecting squamous epithelial cells
and usually superficial (Song et al., 2012).
Histologically, the mass was nodular to cystic and partially encapsulated, and was comprised of two cellular populations: a multinodular, poorly delineated population of neuroectodermal cells (approximately 80% of the tissue), and variably-sized cysts and islands of squamous epithelial cells
(approximately 20% of the tissue, not including cystic contents; Figs 2A, 2B).
Inadequate smears were those with only haemorrhagic material or only sparse benign squamous epithelial cells
The presence of mucous cells and ciliated cells in epithelial lining of odontogenic cysts is a metaplastic change, in which squamous epithelial cells
are replaced by mucous cells.
Cytological examination revealed that both control and vehicle mice had normal estrous cyclicity and showed different stages of the cycle containing proestrus (round, nucleated epithelial cells), estrus (cornified squamous epithelial cells
), metestrus (cornified squamous epithelial cells
and predominance of leukocytes), and diestrus (predominance of leukocytes) (Table 1).
Histologically, the mass consisted of solid and papillary proliferation of atypical squamous epithelial cells
A biopsy performed from the margin of the ulcer showed keratin pearls, nuclear hyperchromatism and pleomorphism with increased nucleocytoplasmic ratio of the squamous epithelial cells
confirming it as well-differentiated keratinizing SCC (Figure 3).
Specimen adequacy was assessed based on the presence of adequate number of squamous epithelial cells
; an adequate conventional smear should contain minimum of approximately 8000 to 12,000 well-preserved and well-visualized squamous epithelial cells
Only sputum samples with <10 squamous epithelial cells
per low power field (LPF) and more than 25 leucocytes or polymorphonuclear cells (PMN) per LPF were accepted for Gram stain and culture.[sup] Some studies indicated that a specimen containing <25 PMN/LPF is likewise considered adequate or suitable in the presence of neutropenic state.
revealed proliferating squamous epithelial cells
. The multiplying cells were seen in form of islands, the formation typical keratin pearl was observed in centre of these islands (Fig.