Abnormal uterine bleeding (AUB) is one of the most common reasons patients are referred for gynecologic ultrasound, yet it can be one of the most complex conditions to evaluate. In this episode of The Seasoned Sonographer, Lynn Flamm, RDMS, explores the clinical and imaging aspects of AUB and how sonographers can make a real difference in patient care. Special guest Physician Assistant Logan Colvis joins to share the provider’s perspective on evaluating AUB in the clinic. Together, they discuss the FIGO PALM-COEIN classification system, the role of ultrasound in identifying structural causes, and how providers integrate imaging findings into management decisions. Whether you’re a sonographer, student, or women’s health provider, this episode will give you practical insights, diagnostic pearls, and collaborative tips for approaching AUB from both the ultrasound room and the exam room.
Topics covered in this episode:
Definition of Abnormal Uterine Bleeding (AUB) and why it matters
FIGO’s PALM-COEIN classification system (structural vs non-structural causes)
Sonographic evaluation of the endometrium: thickness, echotexture, and Doppler findings
Key ultrasound patterns of polyps, fibroids, adenomyosis, and hyperplasia
Postmenopausal bleeding and when endometrial thickness is concerning
How providers use ultrasound reports to guide treatment and biopsy decisions
Communication tips: explaining findings to patients without creating fear
Collaboration between sonographers and providers for best patient outcomes
Guest Interview Highlights:
Logan Colvis, PA shares real-world cases, diagnostic challenges, and the role ultrasound plays in shaping management decisions for women with AUB.
Takeaway Pearls:
Always measure and document endometrial thickness in the sagittal plane
Endometrial appearance must be interpreted in the context of age, cycle, and symptoms
Structural causes (polyps, fibroids, adenomyosis) have distinct ultrasound patterns
Clear sonographer reporting = better, faster, and safer patient care
© 2025 Sono Techniques Academy – The Seasoned Sonographer Podcast by Lynn Flamm, RDMS. All Rights Reserved