Abstract
Multiple endocrine neoplasia type 1 (MEN1) is an autosomal dominant tumor syndrome that may be caused by mutations in the MEN1 gene on 11q13. Loss of function of the tumor suppressor gene MEN1 leads to synchronous or metachronous appearance of neuroendocrine tumors arising from neuroendocrine cells of the parathyroid and pituitary glands, the duodenum and pancreatic islets, and other endocrine organs such as the adrenal cortex. We here present a patient with MEN1 who developed hyperparathyroidism, multiple well differentiated functionally inactive neuroendocrine tumors of the pancreas and an adrenal carcinoma. We describe a new mutation at codon 443 in the coding region of exon 9 in the MEN1 gene, where a cytosine residue was exchanged for adenosine (TCC > TAC) and, consequently, serine for tyrosine (p.Ser443Tyr; c.1327C > A). Also, we provide clinical data that may add to the genotype–phenotype discussion. We conclude that the novel mutation in the MEN1 gene described herein was clinically relevant.
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Acknowledgments
We would like to acknowledge the contributions by Peter E. Goretzki and Ingo Theuerkauf from the Lukas Hospital Neuss and by Stathis Philippou from the Augusta Teaching Hospital Bochum, Germany.
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An erratum to this article can be found at http://dx.doi.org/10.1007/s12020-011-9463-4
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Haase, M., Anlauf, M., Schott, M. et al. A new mutation in the menin gene causes the multiple endocrine neoplasia type 1 syndrome with adrenocortical carcinoma. Endocr 39, 153–159 (2011). https://doi.org/10.1007/s12020-010-9424-3
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DOI: https://doi.org/10.1007/s12020-010-9424-3