Resumen:
The diagnosis of an adnexal mass is a common problem in gynaecological consultation. The main objective of an adnexal mass evaluation is the diagnosis or exclusion of malignancy. This is the case because ovarian cancer is the most lethal gynaecological neoplasia and appropriate initial surgery is one of the main prognostic factors. Ultrasound scans continue to be the best method of classifying an adnexal mass. If there is any suspicion of a malignant tumour, the patient must be referred to a specialist gynaecological oncology centre. However, if there is any suspicion of a benign tumour, watchful waiting or minimally invasive surgery may be indicated. The objective of this article is to carry out a review of the most important and widely used classification systems of adnexal masses, analysing their methodology and the results of their application in the main validation studies published to date. (c) 2017 Elsevier Espana, S.L.U. All rights reserved.