Cell

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CELL. A small room in a prison. See Dungeon.

References in periodicals archive ?
[H.sub.2]O, water and C-, liver as negative controls; A24/2, 50 % Sustentacular cell condition medium after 24 h; A24, 100 % Sustentacular cell condition medium after 24h; A48/2, 50 % Sustentacular cell condition medium after 48 h; A48, 100 % Sustentacular cell condition medium after 48 h and C+, positive control (testicular extraction).
The presence of S-100 protein-reactive sustentacular cells supports this diagnosis, although the presence of these cells has been demonstrated in some bronchial carcinoid tumors.
The tyrosine phosphorylated proteins have been localized in only Sustentacular cells (Sertoli) and elongated spermatid cells (Arad-Dann et al.).
The diameter of the sustentacular cells (Sertoli cells) were higher in summer and Monsoon I and very low during monsoon II with the presence of degenerating sustentacular cells with darker cytoplasm, nuclear compaction and more cytoplasmic inclusions.
Figures 1, 2, 3, 4, and 5 show MRI abdomen showing 11 x 12 x 14 cm mixed cystic and solid mass centered in the right adrenal gland, HE 40x pheochromocytoma, HC S100 sustentacular cells, HC 40x chromogranin, and CT abdomen with porta hepatis paraganglioma, respectively.
The periphery of the cell nests or Zellballen is lined by spindle-shaped sustentacular cells. Local or distant metastasis is the only definite criterion for malignancy.
S 100 was focally positive depending upon the number of sustentacular cells which was relatively less in this particular case.
Paragangliomas are composed of two cell types: chief cells and sustentacular cells. The chief cells are characteristically packed in a Zellballen pattern, separated by a fibrovascular stroma and surrounded by the more basophilic sustentacular cells.
Sustentacular cells show positive staining as an internal positive control (original magnifications X100 [A] and X200 [B]).
Immunohistochemistry (3) shows neuron specific enolase, synaptophysin, S-100 protein positive sustentacular cells, keratin negativity, neuroendocrine marker positivity.
The ganglion cells within the ganglioneuroma component were immunoreactive for S-100 protein as were the sustentacular cells within the paraganglioma component.
Histologically, these tumors appear highly vascular and are composed of clusters (Zellballen, which is German for "cell balls") of chief cells supported by sustentacular cells and small blood vessels.