Umbilical Cord Variations: Vessel Number, Coiling Patterns, Knots, and Cysts

Umbilical Cord Variations: Vessel Number, Coiling Patterns, Knots, and Cysts

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Course Overview

Educational Need / Practice Gap: Cord abnormalities may be overlooked or inconsistently reported, impacting risk assessment for fetal growth and adverse outcomes.

Objectives

Confirm cord vessel number and recognize single umbilical artery.

2. Identify abnormal coiling and cord cysts with appropriate differential considerations.

3. Document cord findings using standardized terminology.

Content Outline (Subtitles):

● Normal cord anatomy and vessel confirmation

● Single umbilical artery: implications and documentation

● Coiling: hypercoiled vs hypocoiled patterns

● True knot suspicion and limitations of ultrasound

● Cord cysts: types and reporting

Target Audience

OB ultrasound providers and interpreting clinicians

Faculty & Disclosure

Faculty

Aly Sida (ADMIN)

Disclosure

In compliance with the Essentials and Standards of the ACCME, the author of this CME tutorial is required to disclose any significant financial or other relationships they may have with commercial interests. IAME has assessed conflict of interest with its faculty, authors, editors, and any individuals who were in a position to control the content of this CME activity. Any identified relevant conflicts of interest have been mitigated. IAME's planners, content reviewers, and editorial staff disclose no relationships with ineligible entities.

Credits

1
AMA PRA Category 1™ Credits

* AMA PRA Category 1™ credits are used by physicians and other groups like PAs and certain nurses. Category 1 credits are accepted by the ARDMS, CCI, ACCME, and Sonography Canada.

Course Details

Duration1 hour
ReleasedMar 17, 2026
Last ReviewMar 17, 2026
ExpiresMar 17, 2029

Accreditation

The Institute for Advanced Medical Education is accredited by the Accreditation Council for Continuing Medical Education (ACCME) to provide continuing medical education for physicians.

The Institute for Advanced Medical Education designates this enduring material for a maximum of 1 AMA PRA Category 1 Credit™.

Physicians should only claim credit commensurate with the extent of their participation in the activity. Sonographers: These credits are accepted by the American Registry for Diagnostic Medical Sonography (ARDMS), Sonography Canada, Cardiovascular Credentialing International (CCI), and most other organizations.

Course Content