Ovarian-Adnexal Reporting & Data System: O-RADS 3

 Ovarian-Adnexal Reporting & Data System by MRI

Category: O-RADS 3

Aim: Uniform and unambiguous MRI evaluation of adnexal pathology &  assigning  risk for malignancy

When to do: Average risk women with  no Acute Symptoms

ORADS 3

3 types of Cyst:

1. Unilocular

2. Multilocular

3. Cyst with solid component

4. Dilated Fallopian tube

1. Unilocular:

- Proteinaceous fluid 

- Hemorrhagic 

  exclusions: < 3 cm hemorrhagic cyst in premenopausal women - ORADS-1                               : Endometriotic cyst- ORADS 2

- Mucinous content     

- Can have wall enhancement          

2. Multilocular:

- Any type of fluid 

 exclusions: Fat -ORADS 2

- Septation & wall enhancement  

3. Cyst with Solid tissue

 Low risk time intensity curve on Dynamic MRI   

 exclusions: T2 dark/DWI dark solid component - ORADS 2

4. Fallopian Tube:

Non simple fluid

Thick but smooth fold or septation        

Summary: 

A complex unilocular cyst is ORADS -3

A multilocular cyst is O-RADS 3 or above       

Exclusions: 

- Hemorrhagic cyst below 3 cm in Pre-menopausal women, 

- Endometriotic cyst without solid enhancing components  

- Cyst with lipid

- Cyst with solid component, that is T2 W dark / DWI dark

Prepared by: Dr. Sharad Maheshwari

16.2.2023

Updated: