IOTA criteria for the diagnosis of ovarian masses - cases analysis.

Autor: Tîrnovanu, Mihaela Camelia, Toma, Bogdan, Mucileniţa, Cerasela, Corduneanu, Roxana, Iov, Alexandra, Tîrnovanu, Vlad Gabriel
Předmět:
Zdroj: Ginecologia.ro; 2020 Supplement, Vol. 8, p64-64, 1/2p
Abstrakt: Background. Fifty percent of adnexal masses are usually instantly recognisable at transvaginal ultrasound examination using simple descriptors. If the ovarian mass does not fit one of these categories, we must use IOTA (International Ovarian Tumor Analysis) simple rules to discriminate between benign and malignant masses. The simple rules were conclusive in about 75% of adnexal masses. If we have inconclusive cases, we can use the subjective opinion by an expert or ADNEX (IOTA risk of malignancy model). For ADNEX, the optimum cut-off is 26.1%, but the subjective appearance by expert is superior to ADNEX. Objective. To establish a prospective validation of IOTA group criteria. Methodology. We analyzed 250 patients admitted to the First Clinic of Gynecology, Iaşi, for surgical treatment during three years. Results. 55.2% of adnexal masses were recognisable using simple descriptors. The simple rules were applicable in 70.53% of the rest of tumors. We had 33 inconclusive cases. The malignancy rate was 5% in cases classified as benign, 89% in cases classified as malignant, and 37% in inconclusive cases. Feature B1 (unilocular cyst) was most predictive of a benign tumor, while feature B3 (acoustic shadows) was least predictive. Feature M2 (ascites) was most predictive of malignancy and feature M4 (irregular multilocularsolid tumor with the largest diameter ≥100 mm) was least predictive. Conclusions. The simple rules must be used on the assessment and management of ovarian masses. The ability to provide accurate risk estimates is highly relevant for risk stratification and individualized patient management. The important limitations of the simple rules are the inconclusive results for some cases and the absence of an estimated risk of malignancy. The simple rules cannot replace training and experience in ultrasonography. [ABSTRACT FROM AUTHOR]
Databáze: Complementary Index