10195 - Ovarian Stromal Tumors with Features Mimicking Malignancy: Case Studies

Course Director

Esther Oliva, M.D., Harvard Medical School


This course uses a case-based approach to illustrate key diagnostic features of rare benign ovarian stromal tumors that have features concerning for malignancy. It provides detailed criteria backed by beautiful histologic images to point out differentiating features that enable accurate diagnosis. This is a fantastic course that addresses important pitfalls in ovarian pathology by a world expert in the field.


AMA PRA Category 1 Credits™

Opus Medicus designates this Internet enduring material for a maximum of 1.25 AMA PRA Category 1 Credits™. Physicians should claim only the credit commensurate with the extent of their participation in the activity.

Maintenance of Certification (MOC) Credits

In addition to AMA PRA Category 1 Credits™, Opus Medicus designates this course for Specialty Board MOC Program Credits:

1.25 ABP CC/MOC Credits1

Accreditation Statement

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

Tuition Fees

Course & Credits: $32.50

Course Dates

Last Review Date: 08-Oct-2020
Expiration Date: 08-Oct-2023


After taking this course participants are expected to:

1. Know key histologic features of certain benign challenging ovarian stromal tumors that mimic malignancy.

2. Appreciate the histologic differential diagnoses of ovarian stromal tumors and how to distinguish them.

3. Avoid pitfalls in diagnosing benign ovarian stromal tumors with concerning features for malignancy.


1. Mitotically active cellular fibroma

2. Luteinized thecomas with sclerosing peritonitis

3. Sclerosing stromal tumor during pregnancy

4. Microcystic stromal tumor

Specific topics covered in this AMA PRA Categogy 1 Credit™ online CME course include Ovarian fibroma, Gorlin syndrome, Mitotically active cellular fibroma, Luteinized thecomas with sclerosing peritonitis, Sclerosing stromal tumor, and Microcystic stromal tumor.

American Board of Medical Specialties (ABMS) / Accreditation Council for Graduate Medical Education (ACGME) Competencies

☑  Patient Care (PC)
☑  Medical Knowledge (MK)

Financial Relationship Disclosure and Content Attestation

Dr. Esther Oliva attests that she has no financial relationships with a commercial entity offering healthcare related products and/or services. Dr. Steven R. Tahan, Education Committee Chair, attests that commercial entities with which he has relationships do not offer healthcare-related products or services relevant to the content of this course. No other person who has provided content for or who can influence the content of this course has disclosed financial relationships with commercial entities that offer healthcare-related products or services relevant to the course content.

There has been no commercial support for this course.

Supported Computer Hardware and Software Configurations2

Supported client computing platforms include:

A broadband Internet connection is required (e.g., cable, DSL, and 3G or 4G wireless). The course presentation is automatically scaled to the size of the display, from 800x480 pixels (minimum supported) to 1920x1200 pixels. On some smart phones, viewing courses may be tedious.

Supported browsers include:

Javascript, cookies, and popups must be enabled on your browser (which is the default configuration for most browsers).

1. Successful completion of this CME activity, which includes participation in the evaluation component, enables the participant to earn up to 1.25 CC/MOC credits for the American Board of Pathology (ABP) Continuing Certification (CC) / Maintenance of Certification (MOC) Program, in addition to AMA PRA Category 1 Credits™. Participants will earn CC/MOC credits equivalent to the amount of AMA PRA Category 1 credits claimed for the activity. Immediately upon course completion, Opus Medicus will submit participant completion information to ACCME for the purpose of granting ABP CC/MOC credit.

2. The course may also be viewable on other client computing platforms that comply with Internet standards. If you experience technical problems that prevent you from viewing the course, we will promptly issue a full refund upon request.