nucleoli


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nu·cle·o·li

(nū-klē'ō-lī),
Plural of nucleolus.

nucleolus

[no̅o̅klē′ələs] pl. nucleoli
Etymology: L, little nut kernel
any one of the small, dense structures composed largely of ribonucleic acid that are situated within the cytoplasm of cells. Nucleoli are essential in the formation of ribosomes that synthesize cell proteins.

nu·cle·o·li

(nū-klē'ō-lī)
Plural of nucleolus.

nucleoli

plural form of nucleolus.
References in periodicals archive ?
The characteristic cytomorphologic features noted correspond to the histologic features and include large polygonal to round cells with granular to flocculent cytoplasm, well defined cell borders, mild nuclear pleomorphism, vesicular nuclei, perinuclear clearing, and small to indistinct nucleoli.
Loss of the rough endoplasmic reticulum, ribosomes, and nucleoli apparently inhibits cellular protein synthesis and polymerization of RNA and DNA in heat-treated tumor cells (Bowler et al.
2 Photomicrographs show a tumour composed of variably sized tubules (a: Hematoxylin and eosin stain [H&E] x100) and cystic spaces (b: H&E x100) that are separated by thin, hypocellular fibrovascular septae (c: H&E x200), with the lining epithelium showing tombstone appearance focally (d: H&E x200); the tubules are lined by atypical cuboidal to pseudostratified ciliated columnar cells (arrow) with abundant eosinophilic cytoplasm (e: H&E x400), large round to ovoid nuclei with prominent nucleoli (f: H&E x400) and hobnail appearance (g: H&E x600); solid areas show smaller tubules lined by similar atypical cells in a sclerotic stroma (h: H&E x200; i: H&E x400).
Histologically, all tumors contained noncohesive cells with eccentric vesicular nuclei, prominent nucleoli, and fibrillar, eosinophilic cytoplasmic inclusions.
Our case showed a mixed population of spindle cells (predominantly) and epithelioid/plasmacytoid cells, demonstrating nuclear pleomorphism, coarse and clumped chromatin, variable inconspicuous to multiple prominent small nucleoli, and occasionally bi-nucleated tumour giant cells/ bizarre nuclei; and lacks the main cytological features elaborated above of conventional melanoma.
Cells became more scattered after 48 hours and remained round with apparent nucleoli after 72 hours.
In contrast to ILC cells, PLC cells display a greater degree of cellular pleomorphism, have abundant eosinophilic cytoplasm, greater mitotic activity, and nuclear abnormalities such as hyperchromasia, nuclear membrane irregularities, and prominent nucleoli (Figure 1, A through D Figure 2, A).
Neoplastic cells had indistinct cell borders; moderate amounts of pale eosinophilic cytoplasm; large, central, oval to round vesicular nuclei with finely stippled chromatin; and multiple, prominent nucleoli.
On the other hand, the subcortical half of the biopsy was occupied by large aggregates of monotonous bland-appearing large cells which contained mainly clear and rarely eosinophilic foamy cytoplasm, distinct cytoplasmic membrane, medium-sized, and round eccentric nuclei with chromatin clumping and inconspicuous nucleoli (Fig.
Viability was indicated by the presence of intact nucleoli within the cartilage lacunae.
One of the core biopsies showed infiltrative, well-formed, small acini with enlarged nuclei with visible nucleoli and atrophic cytoplasm (Figure 1, A through C).