A case of multiple endocrine adenomatosis (MEA) of mixed type is presented. The syndrome, observed in a 65 year-old female, consisted of multiple neurofibroadenomatosis, medullary thyroid carcinoma, multiple adenomata of the parathyroids, adrenal cortical adenoma and small cell anaplastic bronchogenic carcinoma. Thus, it was composed of type 1 as well as of type 2 MEA. On the basis of another seven cases, collected from the literature, the MEA syndrome of mixed type is reviewed with special reference to the phylogenetic origin of the cells of the APUD system.
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Hansen et al. (1976) studied this question.
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