Primary hyperparathyroidism is a common endocrinopathy. Multiple Endocrine Neoplasia Type 1 (MEN1) is a rare autosomal dominantly inherited endocrine tumor predisposition syndrome, with one of main manifestations being primary hyperparathyroidism. We retrospectively evaluated a set of 1011 patients who underwent surgery for primary hyperparathyroidism between the years 2018-2022, and found 78 (8 %) patients who underwent reoperations and 27 patients with MEN1 syndrome. In the group of patients with MEN1 syndrome, 7 (35 %) needed reoperations. Patients with multiple endocrine neoplasia syndrome have a higher risk of needing reoperation. Genetic testing can help identify MEN1 syndrome preoperatively and to better evaluate the approach to surgery.
Multiple Endocrine Neoplasia (MEN) is a condition in which several endocrine organs of an individual are affected by adenoma, hyperplasia and less often carcinoma, either simultaneously or at different stages of life. Two existing syndromes, MEN1 and MEN2 (2A, 2B), in literature is also mentioned MEN4, are associated also with other non-endocrine disorders. MEN1 (Wermer syndrome) affects the pituitary, parathyroid, and pancreatic area. 95 % of patients show very early manifestation of hyperparathyroidism, often before 40 years of age. Multiple adenomas gradually involve all four parathyroid glands. The first clinical sign of MEN1 includes recurrent nephrolithiasis. The second most frequent manifestation of MEN1 is pancreatic area (pancreas, stomach and duodenum), again multiple malignancies of varying degree which can metastasize. Most often gastrinomas and insulinomas are involved. Pituitary adenomas occur in about one third of MEN1 patients and tend to be larger and less responsive to treatment. Tumors appearing most often are prolactinomas, tumors producing growth hormone, or afunctional adenomas. The other endocrine tumors include carcinoids and adrenal lesions. In the last year we have registered four MEN1 syndrome patients in our center and one patient has been already followed since 2008. In four out of five patients, nephrolithiasis after 30 years of age was the first clinical symptom, but only one of theses cases resulted in MEN1 diagnosis. In all patients, the clinical symptoms intensified and the diagnosis was established between 36 and 40 years of age. A crutial factor is a cooperation with the urology examination of kidney stones formation in young individuals with nephrolithiasis in order to reveal the potential cases of MEN1 syndrome very early on. Consider the MEN1 genetic diagnostics if recurrent primary hyperparathyroidism or recurrent gastroduodenal ulcer disease appear in patients under 40 years of age.Key words: carcinoid - gastrinoma - hyperparathyroidism - insulinoma - MEN1 - multiple endocrine neoplasia - nefrolithiasis - neuroendocrine tumor - pancreatic area - pituitary gland.
- MeSH
- adenom diagnóza etiologie MeSH
- dospělí MeSH
- gastrinom diagnóza etiologie MeSH
- hyperparatyreóza diagnóza etiologie MeSH
- inzulinom diagnóza etiologie MeSH
- lidé MeSH
- mnohočetná endokrinní neoplazie typu 1 komplikace diagnóza MeSH
- nádory hypofýzy diagnóza etiologie MeSH
- nádory příštítného tělíska diagnóza etiologie MeSH
- nádory slinivky břišní diagnóza etiologie MeSH
- nefrolitiáza etiologie MeSH
- peptický vřed etiologie MeSH
- prolaktinom diagnóza etiologie MeSH
- Check Tag
- dospělí MeSH
- lidé MeSH
- Publikační typ
- časopisecké články MeSH
- kazuistiky MeSH
MEN1 syndrome is an autosomal dominant disorder caused by mutation in the men in gene located on the 11th chromosome. It is a rare disorder with incidence of 1 : 30 000. It involves functional or cancerous diseases of parathyroid glands, hypophysis, endocrine pancreas, adrenal glands, or other tumors. The diagnosis of MEN1 is suspected if at least 2 components of this multiple tumor syndrome occur simultaneously. The increase in diagnostic precision enables detection of MEN1 in its early stages. Currently, the most frequently discussed topics include the use of biomarkers for diagnostics and new approaches in surgical treatment of MEN1.
- MeSH
- časná lékařská intervence MeSH
- lidé MeSH
- lidské chromozomy, pár 11 genetika MeSH
- mnohočetná endokrinní neoplazie typu 1 diagnóza genetika terapie MeSH
- mutace MeSH
- prognóza MeSH
- protoonkogenní proteiny genetika MeSH
- Check Tag
- lidé MeSH
- mužské pohlaví MeSH
- Publikační typ
- časopisecké články MeSH
- přehledy MeSH
- Názvy látek
- MEN1 protein, human MeSH Prohlížeč
- protoonkogenní proteiny MeSH
