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Porphyria cutanea tarda: Clinical presentation
Question 1 of 5

True or False. Porphyria cutanea tarda (PCT) is the most common type of porphyria.

True

False

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Fast Facts Friday

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Fast Facts Friday: July 19, 2019 Take Quiz
Fast Facts Friday: July 12, 2019 Take Quiz
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Fast Facts Friday: March 8, 2019 Take Quiz
Fast Facts Friday: March 1, 2019 Take Quiz
Fast Facts Friday: February 22, 2019 Take Quiz
Fast Facts Friday: February 15, 2019 Take Quiz
Fast Facts Friday: February 8, 2019 Take Quiz
Fast Facts Friday: February 1, 2019 Take Quiz

Pediatrics

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Recognizing and managing acute hemorrhagic edema of infancy, Part 1 Take Quiz
Screening guidelines for pediatric psoriasis Take Quiz
Acute hemorrhagic edema of infancy: Confirming diagnosis Take Quiz
Juvenile facial linear scleroderma Take Quiz

Medical Dermatology

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Antinuclear antibody status and malignancy risk in adult-onset dermatomyositis Take Quiz
Prognostic factors of thromboangiitis obliterans Take Quiz
Understanding psychodermatology Take Quiz

Pigmentation Disorders

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Overview of blaschkitis Take Quiz
Clinical review of melasma Take Quiz
Melasma in men Take Quiz
Recognizing frontal fibrosing alopecia, Part 2 Take Quiz
Recognizing frontal fibrosing alopecia, Part 1 Take Quiz
Terra firma-forme dermatosis Take Quiz
Pathogenesis of melasma Take Quiz
Recognizing melasma Take Quiz
Vitiligo: Associations with tanning, sunburn, & moles Take Quiz

Wounds

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Calciphylaxis diagnosis and management Take Quiz
Prognostic factors of thromboangiitis obliterans Take Quiz
Calciphylaxis etiopathogenesis Take Quiz
Identifying and managing lionfish stings Take Quiz

Psoriasis

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The impact of psoriasis on US patients, Part 2 Take Quiz
The impact of psoriasis on US patients, Part 1 Take Quiz
Psoriasis and proinflammatory diet Take Quiz
Psoriasis and risk for appendicitis, cholecystitis, or diverticulitis Take Quiz
AAD-NPF Guidelines: Psoriasis and metabolic syndrome Take Quiz
AAD-NPF Guidelines: Psoriasis and cardiovascular risk factors Take Quiz
Psoriasis and body mass index Take Quiz
Psoriasis and the nervous system Take Quiz
Psoriasis and erectile dysfunction Take Quiz
Psoriasis and sexual dysfunction Take Quiz
Psoriasis, hypertension, and risk of CV procedure and surgery Take Quiz
Psoriasis & dietary recommendations, Part 1 Take Quiz
Methotrexate sodium therapy & hepatic fibrosis Take Quiz
Inflammatory skin disease: CVD & CVA comorbidities Take Quiz
Screening guidelines for pediatric psoriasis Take Quiz
Psoriasis: Patient perspective on impact on daily life Take Quiz
Psoriasis: Obstructive sleep apnea Take Quiz
Scalp psoriasis Take Quiz
Psoriasis: Skin microbiome Take Quiz
Psoriasis: Patient & cohabitant quality of life Take Quiz
Psoriasis: Assessment gap Take Quiz
Psoriasis: Lifestyle weight loss & disease severity Take Quiz
Psoriasis: Prevalence of anxiety Take Quiz
Psoriasis & women’s risk of NMSC Take Quiz
Does phototherapy for psoriasis cause skin cancer? Take Quiz
Psoriasis & bullous pemphigoid Take Quiz
Could psoriasis be a psychodermatological disorder? Take Quiz
Inflammatory markers involved in psoriasis & depression Take Quiz
Psoriasis myths: Part 2 Take Quiz
Psoriasis: Inpatient burden Take Quiz
Psoriasis & phototherapy Take Quiz
Psoriasis: Costs associated with moderate to severe plaque psoriasis Take Quiz
Psoriasis: Observer-rated assessment instruments Take Quiz
Psoriasis myths: Part 1 Take Quiz
Psoriasis: Cardiology risk Take Quiz
Psoriasis: Persistent life effects Take Quiz
Psoriasis & infection risk Take Quiz
Nonbiologic systemic medications for the treatment of psoriasis Take Quiz
Biologics, phototherapy, & other approaches for the treatment of psoriasis Take Quiz
Biologic treatments for psoriasis Take Quiz
Psoriasis & cancer risk Take Quiz
PsA and types of psoriasis Take Quiz
Pathology of psoriasis Take Quiz
Topical medications & psoriasis Take Quiz
Psoriasis: Clinical features Take Quiz
Psoriasis pathogenesis Take Quiz
New systemic therapies for psoriasis Take Quiz
Physiological link between psoriasis & mood disorders Take Quiz
Comorbidity & economic burden among patients with psoriasis Take Quiz
Diagnosis & management of cold urticaria Take Quiz
The economic burden of psoriasis Take Quiz
Disease burden & QOL in psoriasis patients Take Quiz
Psoriasis & risk of depression Take Quiz
Understanding patient-reported experiences of living with psoriasis Take Quiz
Psoriasis treatment: Part 2 Take Quiz
Systemic therapies for psoriasis Take Quiz
Pathophysiology of psoriasis Take Quiz
Psoriasis treatment: Part 1 Take Quiz
AAD guidelines: Phototherapy & photochemotherapy for psoriasis Take Quiz
Maintenance therapy for patients with psoriasis Take Quiz
Classification of plaque psoriasis Take Quiz

Atopic Dermatitis

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Pediatric S. aureus-colonized atopic dermatitis and effects of sodium hypochlorite body wash Take Quiz
Molluscum contagiosum virus infection & atopic dermatitis Take Quiz
Inflammatory skin disease: CVD & CVA comorbidities Take Quiz
Atopic dermatitis: Patient-reported dietary modifications Take Quiz
Atopic dermatitis and systemic diseases Take Quiz
Atopic dermatitis: Persistence of disease Take Quiz
Atopic dermatitis: Association with smoking Take Quiz
Understanding chronic eczematous inflammation Take Quiz
Clinical manifestations of atopic dermatitis Take Quiz
Epidemiology & etiology of atopic dermatitis Take Quiz
Types of hand eczema: Part 2 Take Quiz
Types of hand eczema: Part 1 Take Quiz
Symptoms and treatment of subacute eczematous inflammation Take Quiz
AAD Guidelines: Prevention of AD flares Take Quiz
Stages of eczematous inflammation Take Quiz
AAD Guidelines: AD and allergic disease Take Quiz
Inside hand eczema Take Quiz
Guidelines: Inside AD Take Quiz
Guidelines for the topical treatment of AD: Part 2 Take Quiz
Guidelines for the topical treatment of AD: Part 1 Take Quiz

Infectious Diseases

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Effects of RA treatment on herpes zoster risk Take Quiz
Diagnosing chromomycosis Take Quiz
Penile intraepithelial neoplasia Take Quiz
Vesiculobullous disorder and MRSA Take Quiz
Acute hemorrhagic edema of infancy: Confirming diagnosis Take Quiz
Zika: Cutaneous signs & symptoms Take Quiz
Actinomycetoma: Treatment & prognosis Take Quiz
Actinomycetoma: What it is and how to diagnose it Take Quiz
Skin lesions & tick bites Take Quiz
Cutaneous reactions to spider, mosquito and fire ant bites Take Quiz
Animal & human bites Take Quiz
Rash associated with Lyme disease Take Quiz
Lesion configuration & Lyme disease Take Quiz
Primary lesions & human scabies infestation Take Quiz

Melanoma

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BRAF wild-type advanced melanoma and checkpoint inhibitor efficacy Take Quiz
Trajectory of nevus development in children Take Quiz
Melanoma incidence and outcomes in US Hispanics Take Quiz
Mohs surgery and digital skin cancers Take Quiz
Melanoma & benefits of immediate-completion lymph node dissection Take Quiz
Melanoma: High risk clinical features Take Quiz
USPSTF: Screening for skin cancer Take Quiz
Does indoor tanning affect an individual’s sun protection practices? Take Quiz
Sunburn and solar erythema Take Quiz
Rare types of melanoma Take Quiz
Prevention and detection of melanoma on the back Take Quiz
CDC report: Melanoma incidence Take Quiz
Incidence of BCC Take Quiz
Health concerns associated with sunscreen use Take Quiz
Surgical management of melanoma Take Quiz

Dermatopathology

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Diagnosing acute generalized exanthematous pustulosis Take Quiz
Treating telangiectasia with heat modalities Take Quiz
Cutaneous metastases Take Quiz
Erythrasma Take Quiz
Candidiasis overview Take Quiz
Penile intraepithelial neoplasia Take Quiz
Superficial acral fibromyxomas Take Quiz
Identifying nodular fasciitis Take Quiz
Cutaneous lupus erythematosus: An overview Take Quiz
Primary systemic amyloidosis: Clinical presentation Take Quiz
Porphyria cutanea tarda: Clinical presentation Take Quiz
Cutaneous amyloidosis: An overview Take Quiz
Radiodermatitis: Clinical findings & treatment Take Quiz
Clinical findings of localized lichen myxedematosus Take Quiz
Understanding miliaria Take Quiz
Understanding erythema multiforme Take Quiz
Granulomas: Clinical findings and presentation Take Quiz
Understanding tophi and gouty disease Take Quiz
Understanding PLCNA Take Quiz
Understanding leukemia cutis Take Quiz
Pathology of amyloidosis Take Quiz
Diagnosis of amyloidosis Take Quiz

Autoimmune Diseases

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Treating severe scleroderma with ablation and transplant Take Quiz

Hair & Nails

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Recognizing frontal fibrosing alopecia, Part 2 Take Quiz
Recognizing frontal fibrosing alopecia, Part 1 Take Quiz
Alopecia areata and mental health Take Quiz
Alopecia & vitamin D deficiency Take Quiz
Superficial acral fibromyxomas Take Quiz
Diagnosing tinea pedis with potassium hydroxide testing Take Quiz
Tick bite alopecia Take Quiz

Psoriatic arthritis

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PsA disease activity and CV risk factors Take Quiz
Methotrexate sodium therapy & hepatic fibrosis Take Quiz

Nonmelanoma Skin Cancer

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Leukemia cutis and acute myeloid leukemia, Part 2 Take Quiz
Nevus sebaceus: Presentation and staging Take Quiz
Leukemia cutis and acute myeloid leukemia, Part 1 Take Quiz
Mohs surgery and digital skin cancers Take Quiz
Recognizing & treating cutaneous myoepithelial carcinoma, Pt 2 Take Quiz
Recognizing & treating cutaneous myoepithelial carcinoma, Pt 1 Take Quiz
Cutaneous squamous cell carcinoma & perineural invasion Take Quiz
Incidence and trends of cutaneous squamous cell carcinoma Take Quiz
Incidence & trends of basal cell carcinoma Take Quiz
First FDA-approved Merkel cell carcinoma treatment Take Quiz
Managing giant basal cell carcinomas Take Quiz
Recognizing giant basal cell carcinomas Take Quiz
Basal cell carcinoma: Electrodessication and curettage Take Quiz
Does indoor tanning affect an individual’s sun protection practices? Take Quiz
Psoriasis & women’s risk of NMSC Take Quiz

Aesthetic Dermatology

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Treating noninvasive vaginal rejuvenation Take Quiz
Microneedling therapy Take Quiz
Botulinum neurotoxin injections update Take Quiz
Treating submental fat Take Quiz
The skin & climate change Take Quiz
Periocular fillers: Injection considerations Take Quiz
Lip augmentation: Injection techniques Take Quiz
Lip augmentation: Overview of current concepts Take Quiz
Treating enlarged facial pores, Part 2 Take Quiz
Treating enlarged facial pores, Part 1 Take Quiz
Skin disorders during menopause & perimenopause Take Quiz
Use of collagen & hyaluronic acid injections Take Quiz
Sun protection after aesthetic procedures Take Quiz
Selecting laser or peel treatments Take Quiz
Safety of sunscreen use Take Quiz
Dark circles under the eyes Take Quiz
Metal oxide compounds in sunscreens Take Quiz
Dermatologic applications of Alpinia officinarum Take Quiz

Dermatitis

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Signs and symptoms of atopic dermatitis & seborrheic dermatitis Take Quiz

Practice Management

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Cellulitis: Clinical criteria, Part 2 Take Quiz
Cellulitis: Clinical criteria, Part 1 Take Quiz
Injection pain with local anesthetics Take Quiz

Rosacea

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Rosacea and depression Take Quiz
Rosacea risk and smoking Take Quiz
Managing rosacea: Erythematolotelangiectatic & papulopustular types Take Quiz
Managing rosacea: Ocular & phymatous types Take Quiz
Clinical findings & treatment of rosacea Take Quiz
Etiology and treatment of rosacea Take Quiz
The treatment of rosacea Take Quiz

Acne

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Treating acne scars Take Quiz
JAAD Guidelines: Acne fulminans Take Quiz
Acne: Prescribing OCPs as a treatment Take Quiz
Acne vulgaris: Quality of life and self-esteem effects Take Quiz
Dermabrasion for acne scarring Take Quiz
Effect of online counseling among adolescents with acne Take Quiz
Oral therapies for acne vulgaris: Part 2 Take Quiz
Oral therapies for acne vulgaris: Part 1 Take Quiz
Topical therapies for women with acne vulgaris Take Quiz
Rare forms of acne Take Quiz
Acne conglobate & nodulocystic acne Take Quiz
Acne scar morphology & choosing a treatment modality Take Quiz
Acne vulgaris in women Take Quiz
Acne scarring: Atrophic versus hypertrophic scars Take Quiz
Treatment approaches for acne Take Quiz
Clinical features & management of severe acne Take Quiz
The etiology & pathogenesis of acne Take Quiz
Treatment of acne Take Quiz
Diagnosing rosacea: Dermatologists vs nondermatologists Take Quiz
Acne classification and types of lesions Take Quiz
Acne classification and types of lesions Take Quiz
Clinical presentation of acne Take Quiz

Seborrheic Keratosis

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Recognizing seborrheic keratosis Take Quiz
Seborrheic keratosis: Systemic implications & complications Take Quiz

Rare Diseases

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Characteristics of erythropoietic protoporphyria and X-linked protoporphyria Take Quiz
Recognizing & treating cutaneous myoepithelial carcinoma, Pt 2 Take Quiz
Recognizing & treating cutaneous myoepithelial carcinoma, Pt 1 Take Quiz
Recognizing rare forms of protoporphyria Take Quiz
Recognizing hydralazine-induced ANCA-positive vasculitis Take Quiz
Diagnosing acrodermatitis continua of Hallopeau Take Quiz

Clinical Guidelines

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JAAD Guidelines: Acne fulminans Take Quiz
USPSTF: Screening for skin cancer Take Quiz
AAD Guidelines: Recommendations for topical anesthesia use Take Quiz
AAD Guidelines: Recommendations for local infiltrative anesthesia use Take Quiz
AAD Guidelines: Minimizing pain from local anesthesia Take Quiz
AAD Guidelines: Additives to local infiltrative anesthesia Take Quiz
AAD Guidelines: Prevention of AD flares Take Quiz
AAD Guidelines: AD and allergic disease Take Quiz
AAD guidelines: Phototherapy & photochemotherapy for psoriasis Take Quiz
Guidelines: Inside AD Take Quiz
Guidelines for the topical treatment of AD: Part 2 Take Quiz
Guidelines for the topical treatment of AD: Part 1 Take Quiz

Actinic Keratosis

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Actinic keratosis: Are shorter ALA incubation periods effective? Take Quiz
Treatment of actinic keratosis Take Quiz
Actinic keratosis: Epidemiology & etiology Take Quiz

Contact Dermatitis

Quiz
Patch testing for adverse drug reactions Take Quiz

Dermatology

Quiz
Atopic dermatitis: Persistence of disease Take Quiz
The skin & climate change Take Quiz
Atopic dermatitis: Association with smoking Take Quiz
USPSTF: Screening for skin cancer Take Quiz
AAD Guidelines: Recommendations for topical anesthesia use Take Quiz
AAD Guidelines: Recommendations for local infiltrative anesthesia use Take Quiz
AAD Guidelines: Minimizing pain from local anesthesia Take Quiz
AAD Guidelines: Additives to local infiltrative anesthesia Take Quiz
AAD Guidelines: Prevention of AD flares Take Quiz
AAD Guidelines: AD and allergic disease Take Quiz
AAD guidelines: Phototherapy & photochemotherapy for psoriasis Take Quiz
Guidelines: Inside AD Take Quiz
Guidelines for the topical treatment of AD: Part 2 Take Quiz
Guidelines for the topical treatment of AD: Part 1 Take Quiz
Quiz
Allergic contact dermatitis: Sensitivity testing Take Quiz
Flushing: An overview Take Quiz
Epidemiology of lichen planus Take Quiz
Guidelines: Diagnosis & assessment of AD Take Quiz

Eczema

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Pruritus dermatoses & treatments Take Quiz

Urticaria

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Solar urticaria: Clinical findings & treatment Take Quiz