Medical term:

apud


apud

Designation for a group of cells in different organs secreting polypeptide hormones or neurotransmitters. Cells in this group have certain biochemical characteristics in common, the first letters of which form the acronym that designates the group; they contain amines, such as catecholamine and 5-hydroxytryptamine, take up precursors of these amines in vivo, and contain amino-acid decarboxylase.
Synonym(s): DNES cells
[amine precursor uptake, and decarboxylation]
Farlex Partner Medical Dictionary © Farlex 2012

APUD

, APUD cells (ap'ŭd, selz)
Designation for cells in various organs secreting polypeptide hormones. Cells in this group have certain biochemical characteristics in common: they contain amines, such as catecholamine and 5-hydroxytryptamine; take up precursors of these amines in vivo; and contain amino acid decarboxylase.
[amine precursor uptake, decarboxylase]
Medical Dictionary for the Health Professions and Nursing © Farlex 2012

APUD

Acronyn for amine precursor uptake (and) decarboxylation.
Collins Dictionary of Medicine © Robert M. Youngson 2004, 2005

apudoma

 [ah″pu-do´mah]
a tumor derived from APUD cells, many of which secrete ectopic hormones.
Miller-Keane Encyclopedia and Dictionary of Medicine, Nursing, and Allied Health, Seventh Edition. © 2003 by Saunders, an imprint of Elsevier, Inc. All rights reserved.

APUDoma

A tumour that produces small peptide hormones of the APUD system
Examples Small (oat) cell carcinoma of lung, medullary carcinoma of thyroid, pancreatic islet cell tumour, ganglioneuroma, and carcinoids of lung, thymus, GI tract, and prostate.
Clinical findings Heterogeneous; reflects functional nature of tumour and/or metastases.
Note on terminology: APUDoma is little used in the working parlance and been replaced by “neuroendocrine tumour”.
Segen's Medical Dictionary. © 2012 Farlex, Inc. All rights reserved.

APUDoma

Oncology A tumor that produces small peptide hormones of the APUD system Examples Small–oat cell carcinoma of lung, carcinoids of lung, thymus, GI tract and prostate, medullary CA of thyroid, pancreatic islet cell tumor, malignant melanoma, ganglioneuroma Clinical Heterogeneous; reflects functional nature of tumor and/or metastases. See MEN.
McGraw-Hill Concise Dictionary of Modern Medicine. © 2002 by The McGraw-Hill Companies, Inc.

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