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Rare Diseases Learning Library

Featured

David Rosmarin
Rapid Refresh
Types of Vitiligo
07/25/2025
David Rosmarin, MD
Learn to distinguish between segmental and non-segmental vitiligo, identify signs of active disease, and explore clinical features like confetti depigmentation, trichrome patterns, and Koebner phenomenon in this detailed breakdown.
Learn to distinguish between segmental and non-segmental vitiligo, identify signs of active disease, and explore clinical features like confetti depigmentation, trichrome patterns, and Koebner phenomenon in this detailed breakdown.
Learn to distinguish between...
07/25/2025
The Derm APP
Ted Lain
Clinical Pearls
Clinical Classifications and Treatment Approaches for Actinic Keratosis
06/26/2025
Ted Lain, MD
In this video, Dr Lain explains the Olsen scale for grading actinic keratosis (AK), distinguishing between mild, moderate, and hyperkeratotic lesions, with a focus on their treatment and differentiation from squamous cell carcinoma in situ.
In this video, Dr Lain explains the Olsen scale for grading actinic keratosis (AK), distinguishing between mild, moderate, and hyperkeratotic lesions, with a focus on their treatment and differentiation from squamous cell carcinoma in situ.
In this video, Dr Lain explains...
06/26/2025
The Derm APP
David Rosmarin
Clinical Pearls
Comorbidities Associated With Vitiligo
05/05/2025
David Rosmarin, MD
Explore key clinical insights on vitiligo comorbidities, including thyroid dysfunction and emerging links to subclinical hearing loss.
Explore key clinical insights on vitiligo comorbidities, including thyroid dysfunction and emerging links to subclinical hearing loss.
Explore key clinical insights on...
05/05/2025
The Derm APP
Ted Lain
Rapid Refresh
Pathogenesis Mechanism of Actinic Keratosis
03/20/2025
Ted Lain, MD
UV radiation is the primary driver of actinic keratoses and squamous cell carcinoma development, triggering DNA damage, lipid oxidation, inflammation, and immunosuppression—ultimately leading to keratinocyte tumor growth.
UV radiation is the primary driver of actinic keratoses and squamous cell carcinoma development, triggering DNA damage, lipid oxidation, inflammation, and immunosuppression—ultimately leading to keratinocyte tumor growth.
UV radiation is the primary...
03/20/2025
The Derm APP
Amy Baum-Jones, PA-C
Rapid Refresh
Basics of Vitiligo
06/18/2024
Amy Baum-Jones, PA-C
Become versed in the basics of vitiligo with Amy Baum-Jones, PA-C.
Become versed in the basics of vitiligo with Amy Baum-Jones, PA-C.
Become versed in the basics of...
06/18/2024
The Derm APP
test
Rapid Refresh
Clinical Features and Epidemiology of Prurigo Nodularis
02/20/2024
Shawn Kwatra, MD
Review the clinical features and epidemiology of prurigo nodularis with Dr Shawn Kwatra.
Review the clinical features and epidemiology of prurigo nodularis with Dr Shawn Kwatra.
Review the clinical features and...
02/20/2024
The Derm APP
Hidradenitis Suppurativa
Clinical Pearls
Differential Diagnosis of Hidradenitis Suppurativa
02/12/2024
Keri Holyoak, PA-C
Gain insights into the differential diagnosis of hidradenitis suppurativa with Keri Holyoak, PA-C.
Gain insights into the differential diagnosis of hidradenitis suppurativa with Keri Holyoak, PA-C.
Gain insights into the...
02/12/2024
The Derm APP
Hidradenitis Suppurativa
Rapid Refresh
Clinical Presentation of Hidradenitis Suppurativa
02/12/2024
Keri Holyoak, PA-C
Refresh your knowledge on the clinical presentation of hidradenitis suppurativa with Keri Holyoak, PA-C.
Refresh your knowledge on the clinical presentation of hidradenitis suppurativa with Keri Holyoak, PA-C.
Refresh your knowledge on the...
02/12/2024
The Derm APP

Rapid Refresh

David Rosmarin
Rapid Refresh
Types of Vitiligo
07/25/2025
David Rosmarin, MD
Learn to distinguish between segmental and non-segmental vitiligo, identify signs of active disease, and explore clinical features like confetti depigmentation, trichrome patterns, and Koebner phenomenon in this detailed breakdown.
Learn to distinguish between segmental and non-segmental vitiligo, identify signs of active disease, and explore clinical features like confetti depigmentation, trichrome patterns, and Koebner phenomenon in this detailed breakdown.
Learn to distinguish between...
07/25/2025
The Derm APP
Ted Lain
Rapid Refresh
Pathogenesis Mechanism of Actinic Keratosis
03/20/2025
Ted Lain, MD
UV radiation is the primary driver of actinic keratoses and squamous cell carcinoma development, triggering DNA damage, lipid oxidation, inflammation, and immunosuppression—ultimately leading to keratinocyte tumor growth.
UV radiation is the primary driver of actinic keratoses and squamous cell carcinoma development, triggering DNA damage, lipid oxidation, inflammation, and immunosuppression—ultimately leading to keratinocyte tumor growth.
UV radiation is the primary...
03/20/2025
The Derm APP
Amy Baum-Jones, PA-C
Rapid Refresh
Basics of Vitiligo
06/18/2024
Amy Baum-Jones, PA-C
Become versed in the basics of vitiligo with Amy Baum-Jones, PA-C.
Become versed in the basics of vitiligo with Amy Baum-Jones, PA-C.
Become versed in the basics of...
06/18/2024
The Derm APP
test
Rapid Refresh
Clinical Features and Epidemiology of Prurigo Nodularis
02/20/2024
Shawn Kwatra, MD
Review the clinical features and epidemiology of prurigo nodularis with Dr Shawn Kwatra.
Review the clinical features and epidemiology of prurigo nodularis with Dr Shawn Kwatra.
Review the clinical features and...
02/20/2024
The Derm APP
Hidradenitis Suppurativa
Rapid Refresh
Clinical Presentation of Hidradenitis Suppurativa
02/12/2024
Keri Holyoak, PA-C
Refresh your knowledge on the clinical presentation of hidradenitis suppurativa with Keri Holyoak, PA-C.
Refresh your knowledge on the clinical presentation of hidradenitis suppurativa with Keri Holyoak, PA-C.
Refresh your knowledge on the...
02/12/2024
The Derm APP
Vivian Shi
Rapid Refresh
Head and Neck Eczema
08/15/2025
Vivian Shi, MD
Dr Vivian Shi explores the burden of head and neck eczema, common triggers, and key diagnostic clues to distinguish atopic dermatitis from its mimickers.
Dr Vivian Shi explores the burden of head and neck eczema, common triggers, and key diagnostic clues to distinguish atopic dermatitis from its mimickers.
Dr Vivian Shi explores the...
08/15/2025
The Derm APP
David Rosmarin
Rapid Refresh
Types of Vitiligo
07/25/2025
David Rosmarin, MD
Learn to distinguish between segmental and non-segmental vitiligo, identify signs of active disease, and explore clinical features like confetti depigmentation, trichrome patterns, and Koebner phenomenon in this detailed breakdown.
Learn to distinguish between segmental and non-segmental vitiligo, identify signs of active disease, and explore clinical features like confetti depigmentation, trichrome patterns, and Koebner phenomenon in this detailed breakdown.
Learn to distinguish between...
07/25/2025
The Derm APP
Daniel Butler
Rapid Refresh
Role of Th2 Immune System in Dermatology
07/15/2025
Daniel C. Butler, MD
Dr Daniel Butler explores the role of Th2 immunity in dermatology. Learn about Th2-mediated skin diseases like atopic dermatitis and chronic spontaneous urticaria, cutting-edge biologics, JAK inhibitors, and best practices for patient...
Dr Daniel Butler explores the role of Th2 immunity in dermatology. Learn about Th2-mediated skin diseases like atopic dermatitis and chronic spontaneous urticaria, cutting-edge biologics, JAK inhibitors, and best practices for patient...
Dr Daniel Butler explores the...
07/15/2025
The Derm APP
Lakshi Aldredge
Rapid Refresh
Type 2 Inflammation and Treatment Targets in Atopic Dermatitis
06/15/2025
Lakshi Aldredge, NP
Dermatology NP Lakshee Aldridge explores type 2 inflammation, its role in atopic dermatitis and prurigo nodularis, and how IL-4, IL-13, and IL-31-targeted therapies restore immune balance and improve patient outcomes.
Dermatology NP Lakshee Aldridge explores type 2 inflammation, its role in atopic dermatitis and prurigo nodularis, and how IL-4, IL-13, and IL-31-targeted therapies restore immune balance and improve patient outcomes.
Dermatology NP Lakshee Aldridge...
06/15/2025
The Derm APP
Hilary Baldwin
Rapid Refresh
Basics of Rosacea
06/05/2025
Hilary E. Baldwin, MD
Rosacea is a complex condition that often presents as a combination of subtypes rather than a single distinct form. This discussion highlights the shift from subtype classification to a phenotypic approach, emphasizing individualized...
Rosacea is a complex condition that often presents as a combination of subtypes rather than a single distinct form. This discussion highlights the shift from subtype classification to a phenotypic approach, emphasizing individualized...
Rosacea is a complex condition...
06/05/2025
The Derm APP
Nnenna Agim
Rapid Refresh
Pediatric Common Infections
04/25/2025
Nnenna Agim, MD
Dr Agim explores common pediatric skin infections caused by bacteria, viruses, fungi, and other microorganisms.
Dr Agim explores common pediatric skin infections caused by bacteria, viruses, fungi, and other microorganisms.
Dr Agim explores common...
04/25/2025
The Derm APP
Ted Lain
Rapid Refresh
Pathogenesis Mechanism of Actinic Keratosis
03/20/2025
Ted Lain, MD
UV radiation is the primary driver of actinic keratoses and squamous cell carcinoma development, triggering DNA damage, lipid oxidation, inflammation, and immunosuppression—ultimately leading to keratinocyte tumor growth.
UV radiation is the primary driver of actinic keratoses and squamous cell carcinoma development, triggering DNA damage, lipid oxidation, inflammation, and immunosuppression—ultimately leading to keratinocyte tumor growth.
UV radiation is the primary...
03/20/2025
The Derm APP
Steven Feldman
Rapid Refresh
Type 2 Inflammation in Atopic Dermatitis
01/13/2025
Steven R. Feldman, MD, PhD
Dr Steve Feldman discusses the role of type 2 inflammation in conditions like atopic dermatitis, asthma, and eosinophilic esophagitis.
Dr Steve Feldman discusses the role of type 2 inflammation in conditions like atopic dermatitis, asthma, and eosinophilic esophagitis.
Dr Steve Feldman discusses the...
01/13/2025
The Derm APP
Brian Kim, MD
Rapid Refresh
Itch Disorders
08/14/2024
Brian Kim, MD, MTR, FAAD
Boost your knowledge of itch disorders with Dr Brian Kim.
Boost your knowledge of itch disorders with Dr Brian Kim.
Boost your knowledge of itch...
08/14/2024
The Derm APP
Brian Kim, MD
Rapid Refresh
Basic Mechanisms of Itch
08/14/2024
Brian Kim, MD, MTR, FAAD
Explore the basic mechanisms of itch with Dr Brian Kim.
Explore the basic mechanisms of itch with Dr Brian Kim.
Explore the basic mechanisms of...
08/14/2024
The Derm APP

Clinical Pearls

Ted Lain
Clinical Pearls
Clinical Classifications and Treatment Approaches for Actinic Keratosis
06/26/2025
Ted Lain, MD
In this video, Dr Lain explains the Olsen scale for grading actinic keratosis (AK), distinguishing between mild, moderate, and hyperkeratotic lesions, with a focus on their treatment and differentiation from squamous cell carcinoma in situ.
In this video, Dr Lain explains the Olsen scale for grading actinic keratosis (AK), distinguishing between mild, moderate, and hyperkeratotic lesions, with a focus on their treatment and differentiation from squamous cell carcinoma in situ.
In this video, Dr Lain explains...
06/26/2025
The Derm APP
David Rosmarin
Clinical Pearls
Comorbidities Associated With Vitiligo
05/05/2025
David Rosmarin, MD
Explore key clinical insights on vitiligo comorbidities, including thyroid dysfunction and emerging links to subclinical hearing loss.
Explore key clinical insights on vitiligo comorbidities, including thyroid dysfunction and emerging links to subclinical hearing loss.
Explore key clinical insights on...
05/05/2025
The Derm APP
Hidradenitis Suppurativa
Clinical Pearls
Differential Diagnosis of Hidradenitis Suppurativa
02/12/2024
Keri Holyoak, PA-C
Gain insights into the differential diagnosis of hidradenitis suppurativa with Keri Holyoak, PA-C.
Gain insights into the differential diagnosis of hidradenitis suppurativa with Keri Holyoak, PA-C.
Gain insights into the...
02/12/2024
The Derm APP
Andrea Nguyen
Clinical Pearls
Vitiligo: Addressing Barriers to Care
09/25/2025
Andrea Nguyen, DMSc, MPAS, PA-C
Explore how NPs and PAs can overcome access barriers and support individualized care for patients with vitiligo.
Explore how NPs and PAs can overcome access barriers and support individualized care for patients with vitiligo.
Explore how NPs and PAs can...
09/25/2025
The Derm APP
Kimberly McPeeks
Clinical Pearls
Allergic Contact Dermatitis
09/15/2025
Kimberly Kincaid McPeeks, MPAS, PA-C
Kimberly McPeaks explores key differences between irritant and allergic contact dermatitis. Learn when to use patch testing, and get tips on patient education and management.
Kimberly McPeaks explores key differences between irritant and allergic contact dermatitis. Learn when to use patch testing, and get tips on patient education and management.
Kimberly McPeaks explores key...
09/15/2025
The Derm APP
Peggy Vernon
Clinical Pearls
Topical Therapies for Pediatric AD
09/05/2025
Peggy Vernon, RN, MA, CPNP, DCNP, FAANP
A review of topical treatments for pediatric atopic dermatitis, from calcineurin inhibitors to newer options like crisaborole and ruxolitinib.
A review of topical treatments for pediatric atopic dermatitis, from calcineurin inhibitors to newer options like crisaborole and ruxolitinib.
A review of topical treatments...
09/05/2025
The Derm APP
Peter Lio
Clinical Pearls
How to Approach Integrative Medicine
08/25/2025
Peter Lio, MD, FAAD
Integrative medicine bridges conventional treatments with complementary approaches, offering a holistic, patient-centered strategy for dermatologic care.
Integrative medicine bridges conventional treatments with complementary approaches, offering a holistic, patient-centered strategy for dermatologic care.
Integrative medicine bridges...
08/25/2025
The Derm APP
Jeffrey M. Cohen, MD
Clinical Pearls
Multiple Sclerosis and Psoriasis
08/05/2025
Jeff Cohen
Dr Cohen examines the complex relationship between psoriasis and multiple sclerosis (MS), focusing on the impact of TNF-alpha inhibitors.
Dr Cohen examines the complex relationship between psoriasis and multiple sclerosis (MS), focusing on the impact of TNF-alpha inhibitors.
Dr Cohen examines the complex...
08/05/2025
The Derm APP
Nnenna Agim
Clinical Pearls
Assessing and Managing Infectious Disease in Children
07/05/2025
Nnenna Agim, MD
Dr Agim highlights the importance of precise diagnostic techniques, such as PCR swabs and cultures, in pediatric infectious disease management.
Dr Agim highlights the importance of precise diagnostic techniques, such as PCR swabs and cultures, in pediatric infectious disease management.
Dr Agim highlights the...
07/05/2025
The Derm APP
Ted Lain
Clinical Pearls
Clinical Classifications and Treatment Approaches for Actinic Keratosis
06/26/2025
Ted Lain, MD
In this video, Dr Lain explains the Olsen scale for grading actinic keratosis (AK), distinguishing between mild, moderate, and hyperkeratotic lesions, with a focus on their treatment and differentiation from squamous cell carcinoma in situ.
In this video, Dr Lain explains the Olsen scale for grading actinic keratosis (AK), distinguishing between mild, moderate, and hyperkeratotic lesions, with a focus on their treatment and differentiation from squamous cell carcinoma in situ.
In this video, Dr Lain explains...
06/26/2025
The Derm APP
Steven R. Feldman, MD, PhD
Clinical Pearls
Adherence to Atopic Dermatitis Treatment
05/15/2025
Steven R. Feldman, MD, PhD
Poor adherence to topical treatments is a major barrier in managing atopic dermatitis.
Poor adherence to topical treatments is a major barrier in managing atopic dermatitis.
Poor adherence to topical...
05/15/2025
The Derm APP
Jeffrey M. Cohen, MD
Clinical Pearls
Malignancy and Psoriasis Treatment
05/15/2025
Jeff Cohen
Dr Cohen explores the association between psoriasis and increased malignancy risk, particularly keratinocyte carcinoma (BCC and SCC), lymphoma, bladder cancer, and lung adenocarcinoma.
Dr Cohen explores the association between psoriasis and increased malignancy risk, particularly keratinocyte carcinoma (BCC and SCC), lymphoma, bladder cancer, and lung adenocarcinoma.
Dr Cohen explores the...
05/15/2025
The Derm APP
David Rosmarin
Clinical Pearls
Comorbidities Associated With Vitiligo
05/05/2025
David Rosmarin, MD
Explore key clinical insights on vitiligo comorbidities, including thyroid dysfunction and emerging links to subclinical hearing loss.
Explore key clinical insights on vitiligo comorbidities, including thyroid dysfunction and emerging links to subclinical hearing loss.
Explore key clinical insights on...
05/05/2025
The Derm APP
The Derm APP

The APP Institute is dedicated to educating and informing advanced practice providers on clinical topics and practical issues to support the profession and improve the quality of patient care across the spectrum of dermatology.

The Derm APP is designed for Advanced Practice Providers who specialize in Dermatology, to further their education and increase their knowledge to achieve better patient outcomes. Explore cutting-edge research, innovative treatment options, and new therapeutic methods, while remaining focused on the fundamental principles and terminology associated with dermatology. Engage year-round with The Dermatologist to access clinical insights, interactive features, research news updates, accredited continuing education programs, and more.

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