The core items were (A) hypoechogenicity, (B) heterogeneity (numerous anechoic areas), (C) hyperechoic bands, (D) calcifications (star), (E) lymph nodes (white arrow), (F) anechoic area, (A, D,E,F) posterior border (dotted line). The core items were (A) hypoechogenicity, (B) heterogeneity (numerous anechoic areas), (C) hyperechoic bands, (D) calcifications (star), (E) lymph nodes (white arrow), (F) anechoic area, (A, D,E,F) posterior border (dotted line). Sandrine Jousse-Joulin et al. RMD Open 2017;3:e000364 Copyright © BMJ Publishing Group & EULAR. All rights reserved.