Table 4.

Recommendation of the different national and international thyroid associations

National and International thyroid association	Year	PND for T4 T3 tumors	PND for T2 T1 tumors
International Association of Endocrine Surgery [71]	2014	Recommended and if age >45 years or <15 years, male,  bilateral or multifocal tumors	Not recommended
British thyroid association (http://www.british-thyroid-association.org/news/Docs/Thyroid_cancer_ guidelines_2007.pdf)	2014	Personalized decision if age >45 years, multifocal tumor,  extrathyroidal extension	Not recommended age <45 years, unifocal tumor, no  extrathyroidal extension
National Comprehensive Cancer Network (http://www.nccn.org)	2013	Consider	Consider
French ENT Society (http://www.orlfrance.org/article.php?id=20)	2012	Recommended	Recommended (at least unilateral)
European Society for Medical Oncology [74]	2012	Controversial	Controversial
Japanese society of thyroid surgeons [6]	2011	Recommended	Recommended
Latin American Thyroid Society [70]	2009	Recommended	Not recommended
American Thyroid Association [5]	2009	Recommended	Not recommended
European Thyroid Association [72]	2006	Not recommended	Not recommended