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Within the broad category of neuroendocrine tumors there are many different tumor types, [10] representing only a small proportion of the tumors or cancers in most of these tissues [citation needed]: Pituitary gland: Neuroendocrine tumor of the anterior pituitary; Thyroid gland: Neuroendocrine thyroid tumors, particularly medullary carcinoma
Due to presence of these tumors, DIPNECH is classified as a pre-malignant condition. [1] Although there have been reports of atypical carcinoids with local lymph node involvement, there are no reports of more aggressive neuroendocrine tumors, such as large cell neuroendocrine or small cell lung cancer, associated with DIPNECH. [3]
Neuroendocrine carcinoma of the cervix is best defined separately:Neuroendocrine: Of, relating to, or involving the interaction between the nervous system and the hormones of the endocrine glands. Carcinoma: An invasive malignant tumor derived from epithelial tissue that tends to metastasize to other areas of the body.
Large-cell neuroendocrine carcinoma of the lung (LCNEC of the lung), or pulmonary large-cell neuroendocrine carcinoma (PLCNC), is a highly malignant neoplasm arising from transformed epithelial cells originating in tissues within the pulmonary tree. It is currently considered to be a subtype of large-cell lung carcinoma.
Pulmonary neuroendocrine tumors are neuroendocrine tumors localized to the lung: bronchus or pulmonary parenchyma.. Pulmonary neuroendocrine tumors include a spectrum of tumors from the low-grade typical pulmonary carcinoid tumor and intermediate-grade atypical pulmonary carcinoid tumor to the high-grade pulmonary large cell neuroendocrine carcinoma (LCNEC) and pulmonary small cell carcinoma ...
Zollinger–Ellison syndrome (Z-E syndrome) is a rare disease in which tumors cause the stomach to produce too much acid, resulting in peptic ulcers. Symptoms include abdominal pain and diarrhea. The syndrome is caused by the formation of a gastrinoma, a neuroendocrine tumor that secretes a hormone called gastrin. [2]
The immunohistochemical phenotype of focal neuroendocrine differentiation in prostate cancer has been intensively studied. Chromogranin A, which is the most abundant product of prostatic neuroendocrine cells and neuroendocrine tumor cells, is widely recognized as a reliable marker for neuroendocrine differentiation. [4]
A VIPoma or vipoma (/ v ɪ ˈ p oʊ m ə /) is a rare endocrine tumor [1] that overproduces vasoactive intestinal peptide (thus VIP + -oma). The incidence is about 1 per 10,000,000 per year. VIPomas usually (about 90%) originate from the non-β islet cells of the pancreas .