Free Practice Questions for OMSB Dermatology (OED)
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Key Facts: OMSB Dermatology (OED) Exam
100 MCQs
Single-best-answer questions on the OED
https://drive.google.com/file/d/1ZL1PBZb86wYqtnewev_otkQCYVcHRw9Y/view
2 h 30 min
Examination duration
https://drive.google.com/file/d/1ZL1PBZb86wYqtnewev_otkQCYVcHRw9Y/view
65%
Passing standard
https://drive.google.com/file/d/1ZL1PBZb86wYqtnewev_otkQCYVcHRw9Y/view
USD 220
Examination fee
https://omsb.gov.om/home/infoPage?id=53
14 domains
Blueprint areas specified in August 2025 OMSB booklet
https://drive.google.com/file/d/1ZL1PBZb86wYqtnewev_otkQCYVcHRw9Y/view
The OED features 100 single-best-answer MCQs in 2 hours 30 minutes, costs USD 220, and requires a 65% score to pass (OMSB booklet, August 2025). It is administered via Pearson VUE worldwide and at the OMSB National Test Center in Muscat. These 100 independent practice questions cover all 14 blueprint areas, led by connective tissue disorders (10%), cutaneous infection (10%), papulosquamous diseases (10%), and skin in systemic disease (10%).
Sample OMSB Dermatology (OED) Practice Questions
Try these sample questions to review concepts for the OMSB Dermatology (OED) exam. Each question includes a detailed explanation. Start the interactive quiz above for the full 100+ question experience with AI tutoring.
1A 34-year-old woman presents with well-demarcated, hyperkeratotic, violaceous plaques on her scalp and conchal bowl. Physical examination reveals follicular plugging with follicular horn spikes visible on the underside of peeled crusts ('carpet tack' sign), central atrophy, and permanent scarring alopecia. Which diagnosis is MOST consistent with these findings?
2A 42-year-old woman develops widespread, non-scarring, annular erythematous plaques with slight central clearing and peripheral fine scale distributed over the upper back, chest, and extensor arms following sun exposure. Serologic evaluation is strongly positive for anti-Ro/SSA antibodies. Which cutaneous lupus erythematosus variant is MOST likely?
3A 50-year-old man presents with progressive dyspnea, dry cough, painful palmar cutaneous hyperkeratotic fissures ('mechanic's hands'), and cutaneous ulcerations over the Gottron papules of his knuckles. Muscle strength and serum creatine kinase (CK) levels are entirely normal. Which myositis-specific antibody is MOST strongly associated with this clinically amyopathic presentation and carries a high risk of rapidly progressive interstitial lung disease (RPILD)?
4A 48-year-old woman presents with calcinosis cutis, Raynaud phenomenon, esophageal dysmotility, sclerodactyly of the fingers, and facial telangiectasias (CREST syndrome). Her skin thickening is limited strictly to areas distal to the elbows and knees and the face. Which autoantibody profile is MOST characteristically positive in this subset of systemic sclerosis?
5A 9-year-old boy presents with a rapidly extending, linear, indurated band with ivory-white center and an active violaceous (lilac) border extending along the left lower extremity across the knee joint, threatening joint mobility and causing limb length discrepancy. What is the FIRST-LINE medical therapy to arrest disease progression and prevent irreversible joint contracture?
6A 38-year-old man develops painful, non-blanching palpable purpura over his lower extremities 10 days after starting cephalexin for pharyngitis. The clinical diagnosis of cutaneous small vessel vasculitis (leukocytoclastic vasculitis) is suspected. To maximize diagnostic yield on direct immunofluorescence (DIF) microscopy, what is the OPTIMAL age of the purpuric lesion selected for biopsy?
7A 45-year-old woman with a history of adult-onset severe asthma, chronic allergic rhinosinusitis, and marked peripheral eosinophilia (absolute eosinophil count 3,200/µL) presents with tender subcutaneous nodules and palpable purpura on her calves. Histopathology demonstrates necrotizing extravascular granulomas with prominent eosinophilic infiltration. Which serologic marker is MOST frequently associated with this condition?
8A 2-month-old infant presents with periorbital erythematous annular plaques ('owl-eye' or 'raccoon-eye' sign) and elevated transaminases. The mother has asymptomatic Sjogren syndrome. Which complication of neonatal lupus erythematosus is IRREVERSIBLE and carries significant morbidity?
9A 56-year-old obese man with poorly controlled type 2 diabetes mellitus presents with progressive, non-pitting, woody induration of the skin across his posterior neck, upper back, and shoulders without preceding infection or paraproteinemia. Biopsy reveals markedly thickened reticular dermis with separated collagen bundles and abundant mucin (hyaluronic acid). What is the MOST likely diagnosis?
10A 32-year-old woman presents with severe Raynaud phenomenon, swollen 'sausage' fingers (dactylitis), arthralgias, and proximal muscle weakness. Laboratory testing reveals very high-titer antibodies against U1-small nuclear ribonucleoprotein (U1-RNP), while antibodies against native dsDNA and Sm (Smith) are completely absent. What is the diagnosis?
About the OMSB Dermatology (OED) Exam
The Omani Examination for Dermatology (OED) is the Oman Medical Specialty Board occupational classification examination conducted for dermatology candidates applying for employment in local healthcare institutions across Oman. Delivered as a 100-question computer-based MCQ exam in English at the OMSB National Test Center or at Pearson VUE centres worldwide, the test assesses clinical readiness and patient safety. This bank provides independent OpenExamPrep practice questions organized across the 14 blueprint domains; it is not an official OMSB resource.
Exam sponsor: Oman Medical Specialty Board (OMSB), Occupational Classification Testing Section. The requirements and fees below concern the certification or admission exam, separate from our free practice resources.
Assessment
100 single-best-answer MCQs in 2 hours 30 minutes across 14 domains: Connective tissue disorders 10%; Cutaneous infection 10%; Papulosquamous 10%; Skin in systemic disease 10%; Benign and malignant tumors 8%; Cutaneous drug reactions 8%; Dermatosurgery and cosmetics 8%; Autoimmune and hereditary blistering 7%; Pediatric dermatology 7%; Skin appendage disorders 7%; Disorders of melanocytes 6%; Photodermatoses 4%; Neurocutaneous 3%; and Pregnancy dermatoses 2% (each may vary by up to 5 percentage points).
Time Limit
2 hours 30 minutes
Passing Score
65%
Fees, eligibility, and exam policies can change. Confirm them with the exam sponsor before applying or paying.
Official sources
- OMSB Occupational Classification Testing Section (examination booklets and registration guide) · Source checked 2026-10-06
- OMSB booklet: Omani Examination for Dermatology (August 2025) · Source checked 2026-10-06
- Pearson VUE: Oman Medical Specialty Board (OMSB) · Source checked 2026-10-06
Our practice resources: topics covered
We aim to reflect publicly available exam outlines and topic information in our study resources. Coverage, format, and difficulty may differ from the actual exam, and we cannot guarantee that every detail is accurate or current. Confirm exam requirements, fees, and policies with the official exam sponsor.
Connective tissue disorders
Lupus erythematosus (CLE, SLE), dermatomyositis, systemic sclerosis, localized scleroderma (morphea), mixed connective tissue disease, and cutaneous vasculitides.
Cutaneous infection
Bacterial pyodermas, mycobacterial infections (tuberculosis, leprosy), viral infections (herpesviruses, HPV, poxviruses), fungal/deep mycoses, and parasitic infestations.
Papulosquamous
Psoriasis and its variants, lichen planus, pityriasis rosea, seborrheic dermatitis, pityriasis rubra pilaris, parapsoriasis, and related erythematosquamous disorders.
Skin in systemic disease
Cutaneous markers of internal malignancy, endocrine and nutritional diseases, sarcoidosis, renal and hepatic dermatoses, and amyloidosis.
Benign and malignant tumors
Basal cell carcinoma, squamous cell carcinoma, malignant melanoma, cutaneous lymphomas, benign epithelial and mesenchymal neoplasms, and cysts.
Cutaneous drug reactions
Severe cutaneous adverse reactions (SJS/TEN, DRESS, AGEP), fixed drug eruptions, lichenoid and exanthematous drug eruptions, and drug causality assessment.
Dermatosurgery and cosmetics
Local anesthesia, biopsy techniques, surgical excision margins, reconstructive flap/graft principles, electrosurgery, cryosurgery, and aesthetic lasers and injectables.
Autoimmune and hereditary blistering
Pemphigus vulgaris and foliaceus, bullous pemphigoid, mucous membrane pemphigoid, dermatitis herpetiformis, and epidermolysis bullosa subtypes.
Pediatric dermatology
Neonatal dermatoses, vascular malformations, infantile hemangiomas, genodermatoses (ichthyoses, Darier disease), and childhood atopic dermatitis.
Skin appendage disorders
Acne vulgaris, rosacea, hidradenitis suppurativa, non-scarring and scarring alopecias, and nail apparatus pathology.
Disorders of melanocytes
Vitiligo, melasma, post-inflammatory pigmentation, congenital and acquired melanocytic nevi, dysplastic nevi, and dermal melanocytosis.
Photodermatoses
Polymorphous light eruption, solar urticaria, cutaneous porphyrias (PCT, EPP), chronic actinic dermatitis, and photoprotection principles.
Neurocutaneous
Neurofibromatosis type 1 and 2, tuberous sclerosis complex, Sturge-Weber syndrome, and related phakomatoses.
Pregnancy dermatoses
Polymorphic eruption of pregnancy (PUPPP), pemphigoid gestationis, intrahepatic cholestasis of pregnancy, and atopic eruption of pregnancy.
Preparing for the OMSB Dermatology (OED) Exam
What You Need to Know
- Passing score: 65%
- Assessment: 100 single-best-answer MCQs in 2 hours 30 minutes across 14 domains: Connective tissue disorders 10%; Cutaneous infection 10%; Papulosquamous 10%; Skin in systemic disease 10%; Benign and malignant tumors 8%; Cutaneous drug reactions 8%; Dermatosurgery and cosmetics 8%; Autoimmune and hereditary blistering 7%; Pediatric dermatology 7%; Skin appendage disorders 7%; Disorders of melanocytes 6%; Photodermatoses 4%; Neurocutaneous 3%; and Pregnancy dermatoses 2% (each may vary by up to 5 percentage points).
- Time limit: 2 hours 30 minutes
- Exam / certification fees: USD 220 Official sources
Using Our Practice Resources
- Work through all 100 available questions
- Review every answer and explanation
- Track weak areas and revisit them
- Use our AI tutor for tough concepts
OMSB Dermatology (OED): Suggested Study Strategy
Frequently Asked Questions
What is the official name of the OMSB dermatology exam?
OMSB designates this exam the Omani Examination for Dermatology (OED). It is an occupational classification examination conducted for dermatology candidates applying for employment in local healthcare institutions in Oman.
How many questions are on the OED, and what is the time limit?
The OED consists of 100 single-best-answer multiple-choice questions administered over 2 hours and 30 minutes, according to OMSB's August 2025 booklet.
What is the passing score and fee for the OED?
The passing score is 65% and the examination fee is USD 220 paid through Pearson VUE. Candidates receive results via email within 24 hours of completing the test.
Who is eligible to take the OED exam?
Eligibility criteria are classified as not published in the official booklet. Candidates must register through the OMSB Occupational Classification Testing Section before scheduling an appointment on Pearson VUE.
Where can candidates take the OED exam?
Candidates residing in Oman take the exam at the OMSB National Test Center located at Innovation Park Muscat. Candidates residing outside Oman can take it at authorized Pearson VUE test centres worldwide.
Is this practice question bank an official OMSB resource?
No. This question bank provides independent OpenExamPrep practice questions on the 14 topic areas published in the OMSB examination blueprint. For official curriculum guidelines and examination booking, visit omsb.gov.om and pearsonvue.com/omsb.