Issue N# 4 - 2009
CERVICO-FACIAL ONCOL
Papillary thyroid microcarcinomas: review of 230 cases
Authors : Bozec A, Peyrottes I, Poissonnet G, Chamorey E, Mahdyoun P, Sudaka A, Ettore F, Benisvy D, Bussière F, Marcy P-Y, Vallicioni J, Demard F, Santini J, Dassonville O. (Nice)
Ref. : Rev Laryngol Otol Rhinol. 2009;130,4:215-220.
Article published in french 
Downloadable PDF document french
Summary :
Objectives: Papillary microcarcinoma (PMC) is one of the most frequent pathological forms of thyroid cancer. Here, we describe the circumstances of diagnosis and the clinical and pathological characteristics of this tumour. We also analyze the therapeutic management and compare it with the recent published guidelines. Methods: Between 2000 and 2006, a total of 230 patients with a PMC of the thyroid gland were included in this retrospective study. We have investigated the correlations between some pathological parameters (plurifocality, lymph node invasion…) and several factors (age, gender, tumour size…). Results: The diagnosis of PMC was suspected in the preoperative period in 15% of the patients, and was confirmed intraoperatively by the pathologist in 42% of the cases. Plurifocal or bilateral PMC were discovered in respectively 30 and 17% of the patients. The rate of lymph node invasion in the central neck (level VI) was 26%. An elevated tumor size was correlated with a higher rate of plurifocal or bilateral PMC and of lymph node metastasis (p< 0.05). The indications for postoperative radioiodine therapy were reduced by approxiately 50% in the second part of our study. There were no case of thyroid PMC-related death. Conclusions: Even for these small tumours, tumour size remains correlated with the tumour aggressiveness. The place of radioiodine therapy in the management of thyroid PMC was progressively reduced because of the good prognosis of this tumour.
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