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  Home about login register labs trip advanced history search tips translate suggestions... Your search found the following article in our index: unknown primary, childhood carcinoma of publication 1582, 2012 other rare childhood cancers                                                                                           other rare childhood cancers include multiple endocrine neoplasia syndromes and carney complex, skin cancer, chordoma, and cancer of unknown primary site. The prognosis, diagnosis, classification, and treatment of these other rare childhood cancers are discussed below. buy viagra without prescriptions cheap viagra no prescription viagra no prescription fastest shipping us real viagra without prescription aarama.org/chw-prescription-free-viagra-hn/ generic viagra without a prescription viagra without prescription online usa canadian viagra no prescription viagra without doctor prescription viagra without a doctor prescription overnight delivery It must be emphasized that these cancers are seen very infrequently in patients younger than 15 years, and most of the evidence is derived from case series. Multiple endocrine neoplasia (men) syndromes and carney complex men syndromes are familial disorders that are characterized by neoplastic changes that affect multiple endocrine organs. [ ] changes may include hyperplasia, benign adenomas, and carcinomas. Type 2 can be further subdivided into three subtypes: type 2a, type 2b, and familial medullary thyroid carcinoma. Clinical features and diagnosis of men syndromes the most salient clinical and genetic alterations of the men syndromes are shown in table 4. Syndrome   clinical features/tumors   genetic alterations   men type 1: werner syndrome [ ] parathyroid 11q13 ( men1 gene) pancreatic islets: gastrinoma 11q13 ( men1 gene) insulinoma glucagonoma vipoma pituitary: prolactinoma 11q13 ( men1 gene) somatotrophinoma corticotropinoma other associated tumors: carcinoid: bronchial and thymic 11q13 ( men1 gene) adrenocortical lipoma men type 2a: sipple syndrome medullary thyroid carcinoma 10q11. 2 ( ret gene) pheochromocytoma parathyroid gland men type 2b medullary thyroid carcinoma 10q11. 2 ( ret gene) pheochromocytoma mucosal neuromas intestinal ganglioneuromatosis marfanoid habitus familial medullary thyroid carcinoma medullary thyroid carcinoma 10q11. 2 ( ret gene) men 1 syndrome: men 1 syndrome, also referred to as werner syndrome, is an autosomal dominant disorder characterized by the presence of tumors in the parathyroid, pancreatic islet cells, and anterior pituitary. Diagnosis of this syndrome should be considered when two of the three endocrine tumors listed in the tab.