Contact dermatitis
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Contact dermatitis
Dermatologic system
Acneiform eruptions
Desquamation
Diseases and disorders of the hair and nails
Exanthems
Infectious diseases
Cellulitis
Erysipelas
Impetigo
Necrotizing fasciitis
Candida
Malassezia (Tinea versicolor and Seborrhoeic dermatitis)
Pediculus humanus and Phthirus pubis (Lice)
Sarcoptes scabiei (Scabies)
Coxsackievirus
Herpes simplex virus
Human papillomavirus
Poxvirus (Smallpox and Molluscum contagiosum)
Varicella zoster virus
Keratotic disorders
Neoplasms
Papulosquamous disorders
Skin integrity
Vascular abnormalities
Vesiculobullous disease
Other dermatologic disorders
Dermatologic system pathology review
Acneiform skin disorders: Pathology review
Bacterial and viral skin infections: Pathology review
Papulosquamous and inflammatory skin disorders: Pathology review
Pigmentation skin disorders: Pathology review
Skin cancer: Pathology review
Vesiculobullous and desquamating skin disorders: Pathology review
Viral exanthems of childhood: Pathology review
Assessments
Flashcards
0 / 9 complete
USMLE® Step 1 questions
0 / 2 complete
High Yield Notes
6 pages
Flashcards
Contact dermatitis
0 of 9 complete
Questions
USMLE® Step 1 style questions USMLE
0 of 2 complete
A 40-year-old woman presents to the office because of a rash and burning sensation on her hands. It started two days ago and is scaly and nonpruritic. She works as a gardener but recently started a new part-time house cleaning service near her neighborhood. Past medical history is significant for a streptococcal throat infection three weeks ago, treated with oral penicillin. She has taken warfarin regularly for the past three years after undergoing prosthetic aortic valve replacement. Family history is significant for atopic dermatitis in her mother. Vitals are within normal limits. Physical examination findings are shown.
Reproduced from Flickr
Which of the following factors most likely triggered this patient’s skin condition?
Reproduced from Flickr
Which of the following factors most likely triggered this patient’s skin condition?
External References
First Aid
2024
2023
2022
2021
Contact dermatitis p. 111
Hypersensitivity reaction type IV
contact dermatitis p. 485
Type IV hypersensitivity reactions
contact dermatitis p. 485
Summary
Contact dermatitis is a type of skin rash that occurs when your skin comes into contact with an allergen or irritant. It is considered a type IV (delayed) hypersensitivity reaction, and commonly associated allergens include perfumes, cosmetics, latex, detergents, and plants such as poison ivy. Common symptoms include skin redness, swelling, itching, blisters, and dry skin. In severe cases, contact dermatitis can lead to cracks in the skin that may become infected.