3049
BACKGROUND : The aim of this study was to investigate not only the intratumoral and peritumoral lymphatic vessel density ( ILD and PLD ) but also the expression of vascular endothelial growth factors ( VEGFs ) and to test their correlation with regional lymph nodal metastases in papillary thyroid microcarcinoma ( PTMC ) .
 Anatomy: intratumoral; Anatomy: peritumoral lymphatic vessel; Anatomy: lymph nodal metastases; Anatomy: papillary thyroid microcarcinoma; Anatomy: PTMC
Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: Anatomy 
Text: {0} 
Answer:
 Anatomy: intratumoral; Anatomy: peritumoral lymphatic vessel; Anatomy: lymph nodal metastases; Anatomy: papillary thyroid microcarcinoma; Anatomy: PTMC