Chronic ectopic pregnancy: ultrasonic diagnosis

Area of Science:

• Radiology
• Obstetrics & Gynecology
• Medical Imaging

Background:

• Classical ultrasound findings for chronic ectopic pregnancy include a slightly enlarged uterus with uniform echoes and an extrauterine mass.
• These classic signs may not always be present, leading to diagnostic challenges.

Purpose of the Study:

• To highlight common variations in the ultrasonic presentation of chronic ectopic pregnancy.
• To illustrate how atypical findings can differ from the classical description.

Main Methods:

• Retrospective review of ultrasound images of confirmed chronic ectopic pregnancies.
• Comparison of observed ultrasonic features with the classical diagnostic criteria.

Main Results:

• Midline pelvic masses with irregular echo patterns and cystic areas are frequently observed.
• Associated findings often include pelvic fluid and obscured anatomical landmarks.
• These presentations diverge from the textbook description of a uniformly echogenic uterus and simple adnexal mass.

Conclusions:

• Chronic ectopic pregnancy exhibits a wider range of ultrasonic appearances than classically described.
• Awareness of these variations improves diagnostic accuracy in suspected ectopic pregnancies.
• Illustrative examples are crucial for training ultrasonographers to identify atypical chronic ectopic pregnancies.