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CURRENT ISSUECHIRURGIA

A Journal on Surgery

Indexed/Abstracted in: EMBASE, Scopus, Emerging Sources Citation Index

Frequency: Bi-Monthly

ISSN 0394-9508

Online ISSN 1827-1782

 

Chirurgia 2000 April;13(2):125-30

    CLINICAL REPORTS

A peculiar case of mixed medullary-papillary thyroid carcinoma

Pollino V., Porcu G., Calò P., Cabula C., Montisci S., Giannoni N., Nicolosi A.

Mixed medullary-follicular or papillary carcinomas are seldom found in the thyroid gland. The first one is defined by the WHO classification as a tumour showing both morphological features of medullary and follicular carcinoma with immunoreactive calcitonin and thyroglobulin. The second one is not enough listed in the above-mentioned classification and reports about it are still few. In the reported case, at first, multiple liver metastases were identified. Histological examination showed to be metastases of a papillary carcinoma. The patient subsequently underwent a total thyroidectomy. In the right lobe of the gland a tumour which exhibited features of both medullary and papillary carcinoma and both calcitonin and thyroglobulin immunoreactivity was found. The immunohistochemical examination of the liver metastases revealed the same immunohistochemical findings of the primary thyroid tumour, thus further confirming the diagnosis of mixed medullary-papillary carcinoma of the thyroid gland. The patient was submitted to a radioiodine treatment without success. Subsequent somatostatin analogue treatment induced a remarkable reduction of calcitonin serum level and US liver metastases disappearance.The recognition of the rare mixed medullary- follicular or papillary thyroid carcinoma suggests hypotheses on its histogenesis and C cells derivation. Moreover, according to some authors, this mixed tumour might constitute a new clinicopathologic entity, different from the conventional medullary one, with a specific epidemiology, clinical course and new treatment resources.

language: Italian


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