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100+ Free ABD Dermatology Practice Questions

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A 42-year-old presents with well-demarcated erythematous plaques with silvery scale on the extensor surfaces of the elbows and knees. Nail pitting is present. Which of the following is the most likely diagnosis?

A
B
C
D
to track
2026 Statistics

Key Facts: ABD Dermatology Exam

4 modules

CORE Exam Structure

ABD CORE Exam format

2 hrs

Time per Module

ABD

$200

Initial CORE Fee (4 modules)

ABD 2026 fee schedule

98%+

First-Attempt Pass Rate

ABD Nov 2025 administration

$394,000

Median Dermatologist Wage

BLS OEWS SOC 29-1229 May 2024

DRY-2

First Eligible Year

1.5+ yrs ACGME dermatology training

The ABD CORE Exam is the multi-module board examination required for ACGME dermatology residency graduates to achieve board certification. The initial fee is $200 (covers 4 modules); additional attempts are $54 per module. Each module includes 75-100 multiple-choice items delivered in 2 hours via Pearson VUE (in-person or OnVUE online). First-attempt 2025 pass rates were strong: Medical 98.7%, Pediatric 97.8%, Surgical 98.3%, Dermatopathology 97.7%, and APPLIED 99.1%. Eligibility requires 1.5+ years of ACGME dermatology training. The US Bureau of Labor Statistics (BLS OEWS, May 2024) reports dermatologists (SOC 29-1229) earning a median annual wage of approximately $394,000, among the highest of any physician specialty. Approximately 12,000+ US dermatologists are board certified by the ABD.

Sample ABD Dermatology Practice Questions

Try these sample questions to test your ABD Dermatology exam readiness. Each question includes a detailed explanation. Start the interactive quiz above for the full 100+ question experience with AI tutoring.

1A 42-year-old presents with well-demarcated erythematous plaques with silvery scale on the extensor surfaces of the elbows and knees. Nail pitting is present. Which of the following is the most likely diagnosis?
A.Nummular eczema
B.Plaque-type psoriasis
C.Pityriasis rosea
D.Tinea corporis
Explanation: Plaque-type psoriasis classically presents with sharply demarcated erythematous plaques with silvery scale on extensor surfaces (elbows, knees), scalp, and lumbosacral area. Nail pitting is a common associated finding and can predict psoriatic arthritis.
2A 28-year-old develops multiple small drop-like erythematous scaly papules on the trunk two weeks after a streptococcal pharyngitis episode. Which psoriasis variant is most consistent with this presentation?
A.Erythrodermic psoriasis
B.Generalized pustular psoriasis
C.Guttate psoriasis
D.Inverse psoriasis
Explanation: Guttate psoriasis classically presents in young adults as small (2-10 mm) drop-like scaly papules, typically erupting 1-3 weeks after streptococcal infection (pharyngitis or perianal strep). ASO titers are often elevated.
3Which of the following biologics targets the p19 subunit of interleukin-23 and is approved for moderate-to-severe plaque psoriasis?
A.Secukinumab
B.Risankizumab
C.Adalimumab
D.Ustekinumab
Explanation: Risankizumab is an IL-23 p19 inhibitor approved for moderate-to-severe plaque psoriasis and psoriatic arthritis. Other IL-23 p19 inhibitors include guselkumab and tildrakizumab, and they offer long-dosing intervals (every 12 weeks).
4Deucravacitinib, approved for plaque psoriasis, inhibits which of the following kinases?
A.JAK1
B.JAK3
C.TYK2
D.SYK
Explanation: Deucravacitinib is a first-in-class selective allosteric TYK2 inhibitor approved for moderate-to-severe plaque psoriasis. Its mechanism blocks IL-23 and type I interferon signaling without the broad JAK1/2/3 inhibition profile of other JAK inhibitors.
5Which phototherapy modality is considered first-line for moderate plaque psoriasis due to its efficacy-to-safety ratio?
A.Broadband UVB (BB-UVB)
B.Narrowband UVB (NB-UVB, 311 nm)
C.PUVA (psoralen + UVA)
D.UVA1
Explanation: Narrowband UVB (peak emission ~311 nm) is considered first-line phototherapy for moderate plaque psoriasis. It has a better efficacy and safety profile than broadband UVB and lacks the carcinogenic and gastrointestinal risks of oral PUVA.
6A patient with moderate plaque psoriasis is started on methotrexate. Which laboratory test is most important to monitor periodically for hepatotoxicity?
A.Procollagen III aminopeptide (PIIINP)
B.Alkaline phosphatase
C.Amylase
D.Ferritin
Explanation: Procollagen III aminopeptide (PIIINP) is a serum marker of hepatic fibrogenesis used to monitor methotrexate-induced liver fibrosis in dermatology, particularly in the UK and Europe. Serial measurements can reduce the need for liver biopsy. AST/ALT and non-invasive imaging (FibroScan) are also used.
7Which of the following topical agents for psoriasis is a vitamin D3 analog?
A.Tazarotene
B.Calcipotriene
C.Tacrolimus
D.Anthralin
Explanation: Calcipotriene (and calcitriol) is a topical vitamin D3 analog used for plaque psoriasis. It reduces keratinocyte proliferation and enhances differentiation by binding the vitamin D receptor. Fixed combination with betamethasone dipropionate is widely used.
8A patient with plaque psoriasis and psoriatic arthritis requires systemic therapy. Which class offers dual approval for moderate-to-severe plaque psoriasis AND psoriatic arthritis with strong MRI-evidence for inhibiting radiographic progression?
A.IL-17A inhibitors (secukinumab, ixekizumab)
B.Topical vitamin D analogs
C.NB-UVB phototherapy
D.Topical calcineurin inhibitors
Explanation: IL-17A inhibitors secukinumab and ixekizumab are approved for both plaque psoriasis and psoriatic arthritis, and in trials (FUTURE and SPIRIT-P) inhibit radiographic progression. TNF-alpha inhibitors and IL-23 inhibitors also have PsA approvals with joint benefit.
9A 6-month-old infant presents with pruritic, crusted, weepy plaques on the cheeks and extensor surfaces. Which pattern most closely matches this description?
A.Adult atopic dermatitis (flexural)
B.Infantile atopic dermatitis
C.Lichen simplex chronicus
D.Seborrheic dermatitis
Explanation: Infantile atopic dermatitis classically involves the face (especially cheeks) and extensor surfaces with pruritic, often weepy and crusted eczematous plaques. Flexural involvement becomes more common after age 2 and in adulthood.
10The Hanifin-Rajka criteria are used to diagnose which condition?
A.Psoriasis
B.Atopic dermatitis
C.Lupus erythematosus
D.Dermatomyositis
Explanation: Hanifin-Rajka criteria are the classic diagnostic criteria for atopic dermatitis, requiring at least 3 of 4 major criteria (pruritus, typical morphology/distribution, chronic or relapsing course, personal/family atopic history) plus minor criteria.

About the ABD Dermatology Exam

The American Board of Dermatology CORE Certification Examination is the board exam for physicians completing an ACGME-accredited dermatology residency. The CORE Exam consists of 4 modules — Medical Dermatology, Pediatric Dermatology, Surgical Dermatology, and Dermatopathology — each containing 75-100 multiple-choice items delivered in a 2-hour computer-based format at Pearson VUE centers or via OnVUE remote proctoring. Residents become eligible for the CORE Exam after completing 1.5 years of dermatology training (DRY-2). The CORE Exam is taken in modules across multiple administrations throughout residency. To achieve final ABD certification, residents must also pass the APPLIED Exam after residency graduation.

Questions

325 scored questions

Time Limit

2 hours per module; 4 modules (Medical, Pediatric, Surgical, Dermatopathology)

Passing Score

Criterion-referenced (module-specific)

Exam Fee

$200 initial (covers 4 modules) (ABD)

ABD Dermatology Exam Content Outline

25%

Medical Dermatology

Psoriasis (biologics: IL-17/IL-23), atopic dermatitis (dupilumab, JAK inhibitors), blistering diseases (pemphigus, bullous pemphigoid, DH), connective tissue disease, vasculitis, drug eruptions

25%

Surgical Dermatology

BCC, SCC, melanoma (AJCC 8th ed staging, SLNB), Mohs indications (NCCN/AUC), cutaneous oncologic surgery, lasers, cryotherapy, flaps/grafts

25%

Dermatopathology

Inflammatory, neoplastic, infectious, and immunobullous histopathology; DIF interpretation; salt-split skin; immunohistochemistry

25%

Pediatric Dermatology

Genodermatoses (NF1, TSC, EB, ichthyoses), infantile hemangiomas (propranolol), atopic dermatitis, viral exanthems, neonatal dermatoses

Cross-cutting

Infections & Therapeutics

Dermatophytes (terbinafine for onychomycosis), viral (HSV/HPV), bacterial (MRSA), parasitic (scabies, permethrin/ivermectin), iPLEDGE/isotretinoin, rosacea therapies

Cross-cutting

Pigmentation, Hair, Acne, Rosacea

Vitiligo (topical ruxolitinib), melasma (triple combination), AGA (finasteride/minoxidil), alopecia areata (baricitinib), acne, hidradenitis suppurativa, rosacea subtypes

How to Pass the ABD Dermatology Exam

What You Need to Know

  • Passing score: Criterion-referenced (module-specific)
  • Exam length: 325 questions
  • Time limit: 2 hours per module; 4 modules (Medical, Pediatric, Surgical, Dermatopathology)
  • Exam fee: $200 initial (covers 4 modules)

Keys to Passing

  • Complete 500+ practice questions
  • Score 80%+ consistently before scheduling
  • Focus on highest-weighted sections
  • Use our AI tutor for tough concepts

ABD Dermatology Study Tips from Top Performers

1Spread your 4 CORE modules across DRY-2, DRY-3, and DRY-4 — don't cram all 4 into one administration; most programs recommend Dermatopathology first after PGY-2 didactics
2Master biologics by class and target: TNF-alpha (adalimumab/infliximab), IL-17A (secukinumab/ixekizumab), IL-17A+F (bimekizumab), IL-23 p19 (risankizumab/guselkumab), IL-12/23 p40 (ustekinumab), IL-4Ra (dupilumab), IL-13 (tralokinumab), and TYK2 (deucravacitinib) — and their screening requirements (TB, HBV, IBD caution for IL-17)
3Memorize AJCC 8th edition melanoma T-staging: Breslow thickness cutoffs (0.8 mm, 1 mm, 2 mm, 4 mm) and SLNB thresholds (generally ≥0.8 mm with ulceration or >1 mm)
4Drill Mohs NCCN/AUC indications: H-zone locations, recurrence, aggressive histology (morpheaform BCC, poorly differentiated SCC, perineural invasion), depth >6 mm, and immunosuppression
5For Dermatopathology, build pattern recognition: interface dermatitis (LP, lupus), spongiotic (eczema), psoriasiform, granulomatous, vasculitic, and panniculitic — then overlay DIF patterns (PV vs BP vs DH vs LABD)

Frequently Asked Questions

How many questions are on the ABD CORE Exam?

The ABD CORE Exam consists of 4 modules (Medical Dermatology, Pediatric Dermatology, Surgical Dermatology, and Dermatopathology). Each module contains 75-100 multiple-choice items delivered in a 2-hour computer-based format, for roughly 300-400 items total across the full CORE sequence.

What is the ABD CORE Exam passing score?

Each CORE Exam module has its own criterion-referenced passing standard set by the ABD. First-attempt pass rates published by the ABD for the November 2025 CORE administration were 98.7% Medical, 97.8% Pediatric, 98.3% Surgical, and 97.7% Dermatopathology. Pass rates are calculated using first-time candidates only.

Who is eligible to take the ABD CORE Exam?

Candidates must be residents in an ACGME-accredited dermatology residency program who have completed at least 1.5 years of dermatology training. This means residents starting July of DRY-1 first become eligible in February of their DRY-2 year (the second year of dermatology residency). Candidates who start later or miss the DRY-2 cycle may sit in later administrations, with a 2-module cap at their first sitting.

How much does the ABD CORE Exam cost in 2026?

ABD charges an up-front fee of $200 that covers the candidate's first 4 CORE Exam module attempts. Additional attempts beyond those 4 modules (e.g., retakes of failed modules) cost $54 per module. The APPLIED Exam has a separate fee.

How often is the ABD CORE Exam offered?

The CORE Exam is offered 3 times per year: Winter (February), Summer (July), and Fall (October-November). Residents can choose which modules to take at each administration, typically spreading the 4 modules across multiple sittings during residency. Pearson VUE handles scheduling at test centers or via OnVUE remote proctoring.

Can I take the ABD CORE Exam remotely?

Yes. Candidates have the option to take CORE Exam modules in person at a Pearson VUE test center or online via OnVUE remote proctoring from home. The content, timing, and passing standards are identical across both delivery modes. A compatible computer, quiet room, and reliable internet are required for OnVUE.

What happens if I fail a CORE module?

There is no cap on the number of retake attempts per module. Residents who do not pass all modules before residency graduation have a 5-year eligibility window after graduation to complete outstanding modules. Each retake attempt beyond the initial 4 modules costs $54. Residents are strongly encouraged to spread their module attempts across the DRY-2 through DRY-4 years to avoid time pressure.

What is the job outlook for dermatologists?

The US Bureau of Labor Statistics (OEWS May 2024) groups dermatologists under Physicians, All Other (SOC 29-1229) with a median annual wage of approximately $394,000 — among the highest of any medical specialty. Total physician employment is projected to grow about 4% from 2023-2033. Approximately 12,000+ US dermatologists hold active ABD certification, and the AAD reports an ongoing workforce shortage, particularly in rural areas and pediatric dermatology.