10011 - Granulomatous Dermatitis: Histopathology with Clinical Correlates

Course Director

Steven R. Tahan, M.D., Harvard Medical School


This online CME course provides Pathologists, Dermatopathologists, Dermatologists, and trainees criteria to correctly identify the type of granulomas encountered in skin biopsies. It covers the clinical entities that correlate with types of granulomatous inflammation and reviews additional studies that may be helpful to further specify the diagnosis. The course explains how to integrate histologic findings with clinical features and ancillary studies into a specific diagnosis. The information presented facilitates effective histopathology consultations to clinical colleagues for improved therapies and clinical outcomes.


AMA PRA Category 1 Credits™

Opus Medicus designates this Internet enduring material for a maximum of 1.75 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:

1.75 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: $45.50

Course Dates

Last Review Date: 10-Dec-2023
Expiration Date: 09-Dec-2026


The course objectives are for Pathologists, Dermatologists, and trainees to:

1. Correctly identify the type of granulomas encountered in skin biopsies.

2. Learn the differential diagnosis that specific types of granulomatous inflammation imply.

3. Learn what additional studies may be used to help specify the diagnosis.

4. Integrate histologic findings with clinical features and ancillary studies into a specific diagnosis.

5. Expand understanding of the power of detailed hisopathologic evaluation for providing effective histopathology consultations to clinical colleagues.


The course covers the following topics:

1. Identification of granulomatous inflammation and specific subtypes.

2. Differential diagnoses for specific types and patterns of granulomatous inflammation in the skin.

3. Utilization of special stains for diagnosis.

4. Integration of histologic findings with clinical features for more accurate diagnosis.

The course utilizes high-quality histopathologic images taken from actual cases to illustrate key features. These are delivered via our state-of-the-art web interface. They provide both an experience base and ready-reference.

Specific topics covered in this AMA PRA Categogy 1 Credit™ online CME course include cutaneous granulomas, granulomatous dermatitis, skin granulomas, sarcoidosis, tuberculoid granulomas, foreign body granulomas, palisading granulomas, necrobiotic granulomas, cutaneous Crohn's disease, granulomatous rosacea, necrobiotic xanthogranuloma, necrobiosis lipoidica, rheumatoid nodule, suppurative granulomas, interstitial granulomatous dermatitis, lupus pernio, tuberculid, protothecosis, lymphogranuloma venereum, granulomatous slack skin, Tularemia inoculation site, Blastomycosis-like pyoderma, lupus miliaria disseminatus faciei, granulomatous rosacea, syphilis, tuberculid, perioral dermatitis, and leishmaniasis.

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

☑  Patient Care (PC)
☑  Medical Knowledge (MK)
☑  Interpersonal and Communications Skills (IC)

Financial Relationship Disclosure and Content Attestation

Dr. Steven R. Tahan attests that commercial entities with which he has relationships do not produce health-care 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 produce health care-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 1.75 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.