ADENOMA, BETA CELL
\ˌadənˈə͡ʊmə], \ˌadənˈəʊmə], \ˌa_d_ə_n_ˈəʊ_m_ə]\
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A tumor of the beta cells of the islets of Langerhans. Although usually benign, such tumors are among the most important causes of hypoglycemia. Insulinomas usually occur in patients between the ages of 20 and 75 years, the average age being 44-46. Women are 60% of the patients in most series. (Dorland, 27th ed; DeVita Jr et al., Cancer: Principles & Practice of Oncology, 3d ed, p1324)
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Proto Oncogene Proteins c erbB 2
- cell surface protein-tyrosine kinase that is found to be overexpressed in significant number adenocarcinomas. It has extensive homology can heterodimerize EGF EPIDERMAL GROWTH FACTOR), 3 receptor (RECEPTOR, 3) and the 4 receptor. Activation of erbB-2 receptor occurs during heterodimer formation with a ligand-bound erbB family members. EC 2.7.11.-.