Targeted breast ultrasound should be the primary imaging technique to evaluate focal breast signs and symptoms in women younger than 30, according to a study published in the American Journal of Roentgenology.

The study reviewed all ultrasound examinations conducted between 1 January 2002 and 30 August 2006 for focal breast signs and symptoms in women in this age group.

It found that the overall incidence of malignancy was 0.4%, and that the ultrasound technique detected breast malignancy with 100% accuracy, without any false negatives.