Abstract
The cause of familial isolated pituitary adenomas (FIPA) remains unknown in a high percentage of cases, but the AIP gene plays an important role in the etiology. The aim of the study is to describe a family with FIPA syndrome and the results of genomic studies. A 16-year-old man had a giant prolactinoma resistant to medical treatment with delayed growth and pubertal development. His mother had been previously diagnosed with a nonfunctioning pituitary macroadenoma. Transsphenoidal endoscopic resection was performed and a genetic study revealed a heterozygous mutation in exon 6: 974G > A (p.Arg325Gln). Because the AIP gene is a tumor suppressor gene, we searched for loss of heterozygosity within the AIP gene by amplifying exon 6 from tumor tissue of the patient. In the electropherogram, only the A allele was amplified (hemizygous state), indicating loss of the normal allele. We report a Spanish family with FIPA in whom a mutation in the AIP gene previously unreported in a familiar context was identified.
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The authors declare that there is no conflict of interest that could be perceived as prejudicing the impartiality of the research reported.
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García-Arnés, J.A., González-Molero, I., Oriola, J. et al. Familial Isolated Pituitary Adenoma Caused by a Aip Gene Mutation not Described Before in a Family Context. Endocr Pathol 24, 234–238 (2013). https://doi.org/10.1007/s12022-013-9268-5
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DOI: https://doi.org/10.1007/s12022-013-9268-5