Chart 1. Risk stratification of adnexal masses.

Characteristic	High-risk	Low-risk
Age	> 50 years	<50 years
Family history	Present	Absent
Symptoms	Persistent and multiple	Absent
Physical examination findings	Large, fixed, irregular mass, evidence of ascites or metastases	Not suggestive of high risk
Tumor markers	Elevated	Normal
Ultrasound findings	≥10 cm, thick, multilocular septation, increased and / or mixed echogenicity and / or solid component, papillary growths present	<10 cm, absent or fine septum (1–2 mm), unilocular, homogeneous hypoechogenic, absent papillary growths