acinar cell


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Related to acinar cell: Acinar cell carcinoma

acinar cell

[′as·ə·nər ′sel]
(anatomy)
Any of the cells lining an acinous gland.
References in periodicals archive ?
Helpful distinguishing features include the characteristic monotony, the "salt-and-pepper" chromatin pattern of neuroendocrine tumors, and the lack of other cell lineages, such as acinar cells or squamid corpuscles, which are present in pancreatoblastoma.
The latter may be caused by rendering the acinar cells more sensitive to the action of cholecystokinin, a physiological stimulus to zymogen secretion that in higher concentrations causes pancreatitis, making the acinar cells secrete their zymogens to the basolateral side [49, 50], rather than to the apical side, where they are normally secreted.
3]H]arachidonic acid, we demonstrated that the stimulatory effect of the LPS on the acinar cell arachidonic acid release was susceptible to inhibition by MAFP, a specific inhibitor of cPL[A.
In vitro work has shown that the FAEE palmitoleic acid ethyl ester induces a significant increase of calcium in the substance filling the acinar cell (i.
Relatively Specific Immunophenotypes for Metastatic Adenocarcinoma in the Liver From Other Sites Metastatic Tumor Immunohistochemical Stains Colorectal CK20, CDX2 Lung TTF-1, PE10 Breast ER, PR, BRST2 Thyroid TTF-1, thyroglobulin Pancreatic acinar cell carcinoma Trypsin, chymotrypsin Prostate PSA, PSAP Mullerian ER, PR, CA125, WT1 Ne roendocrine neoplasms Chromogranin, synaptophysin Abbreviations: CA125, carbohydrate antigen 125; CK20, cytokeratin 20; ER, estrogen receptor; PR, progesterone receptor; PSA, prostate-specific antigen;PSAP, prostate-specific acid phosphatase; TTF-1, thyroid transcription factor 1;WT1, Wilms tumor suppressor gene.
Neoplasms mimicking IPAS include pancreatic endocrine neoplasm (PEN), acinar cell carcinoma (ACC), solid pseudopapillary neoplasm, well-differentiated adenocarcinoma, as well as lymphoma.
Pancreatic tumors classification * Primary tumors Exocrine Ductal adenocarcinoma Serous cystic tumor Mucinous cystic tumor Solid-pseudopapillarymucinous tumor Acinar cell carcinoma Anaplastic carcinoma Pancreatoblastoma Endocrine Insulinoma Gastrinoma Glucagonoma Vipoma Somatostatinoma Nonhyperfunctiong tumor Nonepithelial tumor Lymphoma Teratoma Lymphangioma Lipoma Neural tumors Secondary tumors * Table data adapted from Solcia E, Capella C, Kloppel G.
Most PEN in patients with VHL behave nonaggressively, and such tumors must be distinguished from acinar cell carcinomas, solid-pseudopapillary tumors, metastatic pheochromocytomas, and metastatic RCC.
The rare acinar cell carcinoma of the pancreas can be confirmed with stains for pancreatic enzymes such as trypsin, chymotrypsin, lipase, and elastase.
It has been known under different names such as solid-pseudopapillary tumor, papillary epithelial neoplasm, papillary cystic neoplasm, solid and papillary epithelial neoplasm, solid and cystic acinar cell tumor, papillary and solid neoplasm, papillary-cystic epithelial neoplasm, papillary-cystic carcinoma, solid and papillary neoplasm, papillary cystic tumor, solid and cystic tumor, solid and papillary neoplasm, low-grade papillary neoplasm, Hamoudi tumor, and Frantz tumor, (1) but the current term, solid-pseudopapillary neoplasm, enjoyed the widest acceptance and has been retained in the latest World Health Organization classification.
Nucleoli are inconspicuous or absent; rarely, they are prominent and incorrectly suggest an acinar cell carcinoma (Figure 8, A).