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Multiple endocrine neoplasia(MEN-1) is also known as Wermer's syndrome. MEN-1 is a hereditory disorder .This type of hereditory disosorder generally passed from one generation to next generation. It affects the hormone producing glands.This disorder increases the development of tumors like cancerous and non cancerous tumors in glands.Non cancerous tumors may develop in parathyroid glands,Neuroendocrine system,anterior pituitory glands and skin. The symptoms are tiredness, bone pain, fractures and kidney stones, as well as stomach or intestinal ulcers.
Eighteen of 705 patients with pHPT and 11 of 93 patients with PETs operated on between 1987 and 2001 had no family history of MEN1, only one organ manifestation and were aged 40 years or less at the time of diagnosis. Fifteen patients with pHPT and eight with PETs agreed to MEN1 gene mutation analysis, which was performed by single-strand conformational variant analysis and direct DNA sequencing.