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DermDX

Derm Dx
What Is This Pigmented Lesion?
09/10/2025
Turkan Banu Karatas, MD; Katie Roster, MD; Banu Farabi, MD; Mehmet Fatih Atak, MD; Shoshana Marmon, MD, PhD
A 63-year-old man with Fitzpatrick skin type III presented to clinic with an asymptomatic 6-mm x 6-mm, brown-black, asymmetric macule and surrounding light brown patch on the left anterior upper arm.
A 63-year-old man with Fitzpatrick skin type III presented to clinic with an asymptomatic 6-mm x 6-mm, brown-black, asymmetric macule and surrounding light brown patch on the left anterior upper arm.
A 63-year-old man with...
09/10/2025
The Dermatologist
Derm Dx
What Is This Yellowish, Erythematous Papule?
08/02/2025
Angelique Ruml, BS; Ibeth Caceres, BS; Joan Fernandez, MD; Eleanor Workman, MD; Yve T. Huttenbach, MD; Ikue Shimizu, MD; Jennifer S. Ranario, MD, MBA
A 91-year-old African American man presented to the dermatology clinic for evaluation of a small, painless papule on his left eyelid of unknown duration.
A 91-year-old African American man presented to the dermatology clinic for evaluation of a small, painless papule on his left eyelid of unknown duration.
A 91-year-old African American...
08/02/2025
The Dermatologist
Derm Dx
What Caused This Alopecic Lesion on the Scalp?
06/05/2025
Aybuke Sapmaz, MD; Banu Farabi, MD; Amor Khachemoune, MD, FAAD, FACMS
An 8-year-old boy presented with a slightly pruritic nodule with an overlying alopecic patch on his right frontal scalp.
An 8-year-old boy presented with a slightly pruritic nodule with an overlying alopecic patch on his right frontal scalp.
An 8-year-old boy presented with...
06/05/2025
The Dermatologist
Derm Dx
What Is This Painless Solid Mass on the Upper Eyelid?
05/01/2025
Amor Khachemoune, MD, FAAD, FACMS; Mahnoor Mukarram, DO
A 51-year-old man sought dermatologic evaluation for an asymptomatic, persistent growth on his left upper eyelid due to mild obstruction of vision.
A 51-year-old man sought dermatologic evaluation for an asymptomatic, persistent growth on his left upper eyelid due to mild obstruction of vision.
A 51-year-old man sought...
05/01/2025
The Dermatologist
Derm Dx
What Caused These Papules on the Ears?
03/06/2025
Kareena S. Garg, BS; Aamir N. Hussain, MD, MAPP
A 56-year-old Asian American man with a history of well-controlled type 2 diabetes presented to dermatology with bumps on his bilateral ears.
A 56-year-old Asian American man with a history of well-controlled type 2 diabetes presented to dermatology with bumps on his bilateral ears.
A 56-year-old Asian American man...
03/06/2025
The Dermatologist
Derm Dx
What Is This Pink Papule on the Right Knee?
02/04/2025
Madeline Brown, BS; Amor Khachemoune, MD, FAAD, FACMS
A 27-year-old woman with a past medical history of hypothyroidism presented to the clinic for concerns of a lesion on her right knee at the site of a previous scar.
A 27-year-old woman with a past medical history of hypothyroidism presented to the clinic for concerns of a lesion on her right knee at the site of a previous scar.
A 27-year-old woman with a past...
02/04/2025
The Dermatologist
Derm Dx
What Is the Grayish Nodule on the Right Cheek?
12/03/2024
Maya Baiyasi, MD; Muhammad Osto, MD; Amor Khachemoune, MD, FAAD, FACMS
A healthy 55-year-old woman with no prior skin cancer history and no personal or family history of genodermatoses presented with a painless lesion on the right central cheek.
A healthy 55-year-old woman with no prior skin cancer history and no personal or family history of genodermatoses presented with a painless lesion on the right central cheek.
A healthy 55-year-old woman with...
12/03/2024
The Dermatologist
Derm Dx
What Is the Scaly Erythematous Plaque on the Left Upper Cheek?
10/07/2024
Aamir N. Hussain, MD, MAPP; Amor Khachemoune, MD, FAAD, FACMS; Tebyan Khalfalla, BS
A 96-year-old woman presented to the dermatology clinic with a scaly plaque on her left cheek that had been there for many years.
A 96-year-old woman presented to the dermatology clinic with a scaly plaque on her left cheek that had been there for many years.
A 96-year-old woman presented to...
10/07/2024
The Dermatologist
Derm Dx
What Is This Exophytic Lesion on the Left Upper Helical Rim?
09/06/2024
Amor Khachemoune, MD, FAAD, FACMS; Madeline Brown, BS
A healthy 42-year-old woman with fair skin (Fitzpatrick type 2) and no significant past medical history presented to the clinic with concerns about a dry, rough lesion on her left ear.
A healthy 42-year-old woman with fair skin (Fitzpatrick type 2) and no significant past medical history presented to the clinic with concerns about a dry, rough lesion on her left ear.
A healthy 42-year-old woman with...
09/06/2024
The Dermatologist
Derm Dx
What Caused This Blister on the Hand?
08/07/2024
Aamir N. Hussain, MD, MAPP
A healthy 3-month-old male infant was brought in by his mother for evaluation of a recurrent blister on his right dorsal hand.
A healthy 3-month-old male infant was brought in by his mother for evaluation of a recurrent blister on his right dorsal hand.
A healthy 3-month-old male...
08/07/2024
The Dermatologist

Popular Articles

Spotlight
A Conversation With Brett Sloan, MD
10/17/2023
Benjamin Barankin, MD, FRCPC
Dr Sloan is a professor of dermatology and the residency program director at the University of Connecticut School of Medicine in Farmington, CT.
Dr Sloan is a professor of dermatology and the residency program director at the University of Connecticut School of Medicine in Farmington, CT.
Dr Sloan is a professor of...
10/17/2023
The Dermatologist
Atopic dermatitis
News
Prenatal Omega-3 Supplementation Not Universally Effective in Reducing Childhood Eczema
12/20/2023
Riya Gandhi, MA
A recent study examined the impact of prenatal omega-3 polyunsaturated fatty acid (ω-3 PUFA) supplementation on childhood eczema.
A recent study examined the impact of prenatal omega-3 polyunsaturated fatty acid (ω-3 PUFA) supplementation on childhood eczema.
A recent study examined the...
12/20/2023
The Dermatologist
Mark Nestor
Videos
Aesthetic Dermatology – Trends and Insights
01/18/2024
Mark S. Nestor, MD, PhD, FAAD
In this interview, Dr Mark Nestor discussed the integration of aesthetics into dermatology, approaches, and the role of aesthetic devices in enhancing patients' overall health during his session, “Aesthetics and Devices: What You Need to...
In this interview, Dr Mark Nestor discussed the integration of aesthetics into dermatology, approaches, and the role of aesthetic devices in enhancing patients' overall health during his session, “Aesthetics and Devices: What You Need to...
In this interview, Dr Mark...
01/18/2024
The Dermatologist
stein gold
Videos
Non-Steroidal Topical Therapies: Changing Psoriasis and Atopic Dermatitis Treatment
02/20/2024
Linda Stein Gold, MD
In this interview, Dr Linda Stein Gold shares her presentation at the 2023 Fall Clinical Conference on the influence of non-steroidal topical therapies on psoriasis and atopic dermatitis.
In this interview, Dr Linda Stein Gold shares her presentation at the 2023 Fall Clinical Conference on the influence of non-steroidal topical therapies on psoriasis and atopic dermatitis.
In this interview, Dr Linda...
02/20/2024
The Dermatologist
Saakshi-Khattri
Videos
Recap: Dual Diagnosing and Managing Psoriasis and Psoriatic Arthritis
04/16/2024
Saakshi Khattri, MD, FACR, FAAD
Explore Dr Khattri's take on the complexities in diagnosing and treating psoriasis and psoriatic arthritis, emphasizing the need for collaborative decision-making between dermatologists and rheumatologists for optimal patient outcomes.
Explore Dr Khattri's take on the complexities in diagnosing and treating psoriasis and psoriatic arthritis, emphasizing the need for collaborative decision-making between dermatologists and rheumatologists for optimal patient outcomes.
Explore Dr Khattri's take on the...
04/16/2024
The Dermatologist

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The Dermatologist Newsletter
New Issue - September 2025

Current Issue

September 2025
Volume 33
Issue 6
Current Issue
Issue Archive

Latest Quizzes and Trivia

acne
Quiz
Quiz: Pathophysiologic Pillars of Acne
09/25/2025
Jessica Garlewicz
Which of the following is not 1 of the 4 core pathophysiologic pillars of acne?
Which of the following is not 1 of the 4 core pathophysiologic pillars of acne?
Which of the following is not 1...
09/25/2025
The Dermatologist
psoriasis
Quiz
Quiz: Risk of Developing Psoriatic Arthritis in Patients with Psoriasis
09/25/2025
Jessica Garlewicz
Which of the following clinical features is most strongly associated with an increased risk of developing psoriatic arthritis in patients with psoriasis?
Which of the following clinical features is most strongly associated with an increased risk of developing psoriatic arthritis in patients with psoriasis?
Which of the following clinical...
09/25/2025
The Dermatologist
Quiz
When Should You Start a JAK Inhibitor for AA?
09/22/2025
Riya Gandhi, MA
Clinicians vary in when they escalate to JAK inhibitor therapy for alopecia areata. Take the quiz to see if your threshold aligns with current expert consensus.
Clinicians vary in when they escalate to JAK inhibitor therapy for alopecia areata. Take the quiz to see if your threshold aligns with current expert consensus.
Clinicians vary in when they...
09/22/2025
The Dermatologist
Quiz
Which Systemic Therapy Raises Red Flags in Older Adults?
09/18/2025
Riya Gandhi, MA
Older patients need special consideration. Take the quiz to identify which systemic drug class carries higher risks—like thrombosis and malignancy—and requires extra caution in aging populations.
Older patients need special consideration. Take the quiz to identify which systemic drug class carries higher risks—like thrombosis and malignancy—and requires extra caution in aging populations.
Older patients need special...
09/18/2025
The Dermatologist
Quiz
How Long Before You Call a JAK Inhibitor Non-Responsive?
09/15/2025
Riya Gandhi, MA
What’s the minimum trial duration before judging JAK efficacy in AA? Test your clinical timing.
What’s the minimum trial duration before judging JAK efficacy in AA? Test your clinical timing.
What’s the minimum trial...
09/15/2025
The Dermatologist
Quiz
What’s the Go-To Adjunct With JAKs in AA Regrowth?
09/08/2025
Riya Gandhi, MA
JAK inhibitors are central, but what’s commonly used alongside them in practice to boost hair regrowth? Take the quiz to find out.
JAK inhibitors are central, but what’s commonly used alongside them in practice to boost hair regrowth? Take the quiz to find out.
JAK inhibitors are central, but...
09/08/2025
The Dermatologist
psoriasis
Quiz
NPF Quiz: The Primary Goal of the S.T.R.A.N.D. Network
09/04/2025
Jessica Garlewicz
What is one of the primary goals of the S.T.R.A.N.D. Network as described by Dr Chesahna Kindred?
What is one of the primary goals of the S.T.R.A.N.D. Network as described by Dr Chesahna Kindred?
What is one of the primary goals...
09/04/2025
The Dermatologist
Quiz
Ethical Arguments in AA: Cosmetic vs. Medical
08/21/2025
Explore the ethical flaws in labeling alopecia areata as a cosmetic concern. Take the quiz to uncover the strongest rationale for reclassifying AA as a medical condition.
Explore the ethical flaws in labeling alopecia areata as a cosmetic concern. Take the quiz to uncover the strongest rationale for reclassifying AA as a medical condition.
Explore the ethical flaws in...
08/21/2025
The Dermatologist
psoriasis
Quiz
True or False: TYK2 Inhibition
08/14/2025
Jessica Garlewicz
True or False: TYK2 inhibition blocks IL-12 and IL-23 signaling, both of which contribute to the activation of Th17 cells in psoriasis.
True or False: TYK2 inhibition blocks IL-12 and IL-23 signaling, both of which contribute to the activation of Th17 cells in psoriasis.
True or False: TYK2 inhibition...
08/14/2025
The Dermatologist
alopecia areata
Quiz
Alopecia Areata—JAK Inhibitor Indications
08/14/2025
Jessica Garlewicz
What is the main reason patients on JAK inhibitors for alopecia areata require regular monitoring?
What is the main reason patients on JAK inhibitors for alopecia areata require regular monitoring?
What is the main reason patients...
08/14/2025
The Dermatologist

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