Importance of early diagnosis and follow-up in multiple endocrine neoplasia (MEN II B).
Three patients with a sporadic form of multiple endocrine neoplasia (MEN) IIb are presented. MEN IIb is the association of medullary carcinoma of the thyroid ( MTC), pheochromocytoma and multiple mucosal neuromata. The age at diagnosis and primary therapy of MTC was relatively late (8, 16, 18 years) although thyroid enlargement (two cases), typical marfanoid habitus (two cases) or multiple mucosal neuromata (one case) had been evident since early childhood. The diagnosis was confirmed by measurements of tumour markers like calcitonin ( CT) and carcinoembryonic antigen ( CEA) for MTC, measurements of vanillylmandelic acid for pheochromocytoma, evaluation of the thyroid gland by sonography, scintigraphy and fine needle biopsy, and investigation of the adrenals by computer tomography and meta-(I-131) iodobenzylguanidine (I-131-MIBG) scintigraphy. After surgical treatment determinations of tumour markers confirmed relapses of MTC in all cases. Early diagnosis of MEN IIb, which could be made by recognition of the typical clinical appearance, is of special importance because of the poor prognosis of MTC.[1]References
- Importance of early diagnosis and follow-up in multiple endocrine neoplasia (MEN II B). Frank, K., Raue, F., Gottswinter, J., Heinrich, U., Meybier, H., Ziegler, R. Eur. J. Pediatr. (1984) [Pubmed]
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