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Prognostic significance of disseminated tumor cells in the connective tissue of patients with medullary thyroid carcinoma.
Department of General, Visceral, and Vascular Surgery, Martin-Luther-University Halle-Wittenberg, Ernst-Grube-Strasse 40, 06097, Halle/Saale, Germany.
Department of General, Visceral, and Vascular Surgery, Martin-Luther-University Halle-Wittenberg, Ernst-Grube-Strasse 40, 06097, Halle/Saale, Germany.
Institute of Pathology, Martin-Luther-University Halle-Wittenberg, Ernst-Grube-Strasse 40, 06097, Halle/Saale, Germany .
Department of General, Visceral, and Vascular Surgery, Martin-Luther-University Halle-Wittenberg, Ernst-Grube-Strasse 40, 06097, Halle/Saale, Germany.
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2006 (English)In: World Journal of Surgery, ISSN 0364-2313, E-ISSN 1432-2323, Vol. 30, no 5, 847-52 p.Article in journal (Refereed) Published
Abstract [en]

INTRODUCTION: Disseminated tumor cells in the connective tissue (CT-DTCs) do not have any connection to a primary tumor or the lymph nodes. They are identified quite often in patients with medullary thyroid carcinoma (MTC), but nothing is known regarding their prognostic significance.

METHODS: Among 450 patients with MTC, 69 (15%) were identified as having CT-DTCs. A case-control group of patients without CT-DTCs was selected. The two groups were matched concerning TNM classification, age, heredity, and sex. Because many patients with CT-DTCs had extrathyroidal tumor extension (pT4 category), distant metastases (M1 category), or both, only 35 matched pairs could be identified. The TNM classification in both groups was as follows: pT1, n = 8; pT2, n = 15; pT3, n = 4; pT4, n = 8; pN0, n = 4; pN1, n = 31; M0, n = 30; M1, n = 5. The mean age was 46.8 +/- 17.0 years in the CT-DTC group and 44.4 +/- 15.0 years in the case-control group (NS).

RESULTS: In both groups, 23 patients had sporadic MTC, and 12 patients had hereditary MTC. Neither mean basal preoperative nor postoperative calcitonin levels differed significantly between the two groups. In contrast, none of the patients with CT-DTCs was biochemically cured (normal calcitonin level after pentagastrin stimulation) compared to eight patients without CT-DTCs (P < 0.005). The two groups did not differ concerning other parameters (basal calcitonin level > 3000 pg/ml, more than 10 lymph node metastases, more than two involved locoregional lymph node compartments, mediastinal lymph node metastases) that have been reported to correlate with the lack of or almost (< 10%) lack of biochemical cure.

CONCLUSIONS: In patients with MTC, disseminated tumor cells in the connective tissue correlate with advanced tumor stages and appear to be of prognostic significance.

Place, publisher, year, edition, pages
2006. Vol. 30, no 5, 847-52 p.
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Medical and Health Sciences
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URN: urn:nbn:se:liu:diva-101427DOI: 10.1007/s00268-005-0367-4PubMedID: 16680599OAI: oai:DiVA.org:liu-101427DiVA: diva2:666222
Available from: 2013-11-22 Created: 2013-11-22 Last updated: 2017-12-06

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