Accuracy of pelvic mass score in preoperative determination of malignancy in adnexal masses

Lakshmi Mohan, Arun Rao, Sonali Ullal, Gowtham Krishna

Research output: Contribution to journalArticle

Abstract

Introduction: Suspicious adnexal masses are a common clinical problem in gynaecological practice. A reliable diagnostic tool for the early detection of the ovarian malignancy is essential. Aim: To validate a new scoring system –Pelvic Mass Score (PMS) in predicting the nature of the adnexal mass pre-operatively. Materials and Methods: A prospective observational study was carried out in 100 consenting women with an undiagnosed adnexal mass requiring operative intervention. Among them 62 patients had mass with a feeding vessel in which the Doppler velocimetry study values were available. The PMS was determined in these 62 patients. A score of 29 or more was taken as suggestive of malignancy. The results were compared with the histopathological diagnosis to confirm malignancy. The chi-square test was applied to test the significance. Results: Among the 62 patients with vascular mass, 31 had histopathological diagnosis of malignancy. The statistical analysis of the data with PMS with 29 as cut-off revealed 100% sensitivity and 100% Negative Predictive Value (NPV) as there was no false negative case detected. But the specificity and Positive Predictive Value (PPV) was poor; 45.2% and 64.6% respectively. Based on the Receiver Operating Characteristic (ROC) curve, if we redefine cut-off as 69, specificity increases to 80.6% with a sensitivity of 90.3%, the PPV and NPV being 82.35 and 89.29 respectively. Conclusion: The present study concludes that, in suspicious vascular adnexal masses PMS can be used as a reliable diagnostic score to predict malignancy if we redefine the existing cut-off of 29 to 69.

Original languageEnglish
Pages (from-to)QC01-QC03
JournalJournal of Clinical and Diagnostic Research
Volume10
Issue number11
DOIs
Publication statusPublished - 01-11-2016

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Velocity measurement
Neoplasms
Statistical methods
Blood Vessels
Statistical Data Interpretation
Rheology
Chi-Square Distribution
ROC Curve
Observational Studies
Prospective Studies

All Science Journal Classification (ASJC) codes

  • Clinical Biochemistry

Cite this

Mohan, Lakshmi ; Rao, Arun ; Ullal, Sonali ; Krishna, Gowtham. / Accuracy of pelvic mass score in preoperative determination of malignancy in adnexal masses. In: Journal of Clinical and Diagnostic Research. 2016 ; Vol. 10, No. 11. pp. QC01-QC03.
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abstract = "Introduction: Suspicious adnexal masses are a common clinical problem in gynaecological practice. A reliable diagnostic tool for the early detection of the ovarian malignancy is essential. Aim: To validate a new scoring system –Pelvic Mass Score (PMS) in predicting the nature of the adnexal mass pre-operatively. Materials and Methods: A prospective observational study was carried out in 100 consenting women with an undiagnosed adnexal mass requiring operative intervention. Among them 62 patients had mass with a feeding vessel in which the Doppler velocimetry study values were available. The PMS was determined in these 62 patients. A score of 29 or more was taken as suggestive of malignancy. The results were compared with the histopathological diagnosis to confirm malignancy. The chi-square test was applied to test the significance. Results: Among the 62 patients with vascular mass, 31 had histopathological diagnosis of malignancy. The statistical analysis of the data with PMS with 29 as cut-off revealed 100{\%} sensitivity and 100{\%} Negative Predictive Value (NPV) as there was no false negative case detected. But the specificity and Positive Predictive Value (PPV) was poor; 45.2{\%} and 64.6{\%} respectively. Based on the Receiver Operating Characteristic (ROC) curve, if we redefine cut-off as 69, specificity increases to 80.6{\%} with a sensitivity of 90.3{\%}, the PPV and NPV being 82.35 and 89.29 respectively. Conclusion: The present study concludes that, in suspicious vascular adnexal masses PMS can be used as a reliable diagnostic score to predict malignancy if we redefine the existing cut-off of 29 to 69.",
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Accuracy of pelvic mass score in preoperative determination of malignancy in adnexal masses. / Mohan, Lakshmi; Rao, Arun; Ullal, Sonali; Krishna, Gowtham.

In: Journal of Clinical and Diagnostic Research, Vol. 10, No. 11, 01.11.2016, p. QC01-QC03.

Research output: Contribution to journalArticle

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T1 - Accuracy of pelvic mass score in preoperative determination of malignancy in adnexal masses

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AU - Rao, Arun

AU - Ullal, Sonali

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AB - Introduction: Suspicious adnexal masses are a common clinical problem in gynaecological practice. A reliable diagnostic tool for the early detection of the ovarian malignancy is essential. Aim: To validate a new scoring system –Pelvic Mass Score (PMS) in predicting the nature of the adnexal mass pre-operatively. Materials and Methods: A prospective observational study was carried out in 100 consenting women with an undiagnosed adnexal mass requiring operative intervention. Among them 62 patients had mass with a feeding vessel in which the Doppler velocimetry study values were available. The PMS was determined in these 62 patients. A score of 29 or more was taken as suggestive of malignancy. The results were compared with the histopathological diagnosis to confirm malignancy. The chi-square test was applied to test the significance. Results: Among the 62 patients with vascular mass, 31 had histopathological diagnosis of malignancy. The statistical analysis of the data with PMS with 29 as cut-off revealed 100% sensitivity and 100% Negative Predictive Value (NPV) as there was no false negative case detected. But the specificity and Positive Predictive Value (PPV) was poor; 45.2% and 64.6% respectively. Based on the Receiver Operating Characteristic (ROC) curve, if we redefine cut-off as 69, specificity increases to 80.6% with a sensitivity of 90.3%, the PPV and NPV being 82.35 and 89.29 respectively. Conclusion: The present study concludes that, in suspicious vascular adnexal masses PMS can be used as a reliable diagnostic score to predict malignancy if we redefine the existing cut-off of 29 to 69.

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