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Related Experiment Video

Updated: May 25, 2026

A Coregistered Ultrasound and Photoacoustic Imaging Protocol for the Transvaginal Imaging of Ovarian Lesions

A Coregistered Ultrasound and Photoacoustic Imaging Protocol for the Transvaginal Imaging of Ovarian Lesions

Published on: March 3, 2023

Pseudomyxoma peritonei: some different sonographic findings.

Yanhong Que¹, Chunmei Tao, Xuemei Wang

¹Department of Ultrasound, First Affiliated Hospital of China Medical University, Shenyang, 110001, Liaoning, China. quebaobao@yahoo.com.cn

Abdominal Imaging

|January 12, 2012

Summary

High-frequency ultrasound reveals anechoic areas in the peritoneum, a specific sign for diagnosing pseudomyxoma peritonei (PMP). Mobile echogenic foci in ascites and specific liver margin changes also aid in PMP diagnosis.

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Last Updated: May 25, 2026

A Coregistered Ultrasound and Photoacoustic Imaging Protocol for the Transvaginal Imaging of Ovarian Lesions

A Coregistered Ultrasound and Photoacoustic Imaging Protocol for the Transvaginal Imaging of Ovarian Lesions

Published on: March 3, 2023

Area of Science:

Radiology
Oncology
Gastroenterology

Background:

Pseudomyxoma peritonei (PMP) is a rare malignancy characterized by mucinous ascites.
Accurate sonographic diagnosis of PMP is crucial for timely management.

Purpose of the Study:

To evaluate the sonographic characteristics of PMP.
To identify specific ultrasound features indicative of PMP.

Main Methods:

Retrospective review of peritoneal biopsies guided by ultrasound.
Comparison of sonographic features in 19 PMP cases versus 279 other peritoneal lesions.
Analysis of peritoneum, ascites, and parenchymal organ sonograms.

Main Results:

Anechoic areas in the peritoneum were observed in 89.5% of PMP cases, with 100% sensitivity.
Mobile echogenic foci in ascites were present in 52.6% of PMP cases.
High specificity for "starburst" appearance (82.3%) and liver margin scalloping (88.1%) was noted, though sensitivity varied.

Conclusions:

Anechoic areas in thickened peritoneum are a specific sonographic sign for PMP.
High-frequency transducers enhance visualization of these anechoic areas.
Mobile echogenic foci in ascites, "starburst" appearance, and liver margin scalloping are significant indicators of PMP.