Sarcoptes scabiei (Scabies)

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Sarcoptes scabiei (Scabies)

Pathology

Pigmented skin disorders

Vitiligo

Albinism

Acneiform skin disorders

Acne vulgaris

Folliculitis

Rosacea

Hidradenitis suppurativa

Papulosquamous and inflammatory skin disorders

Contact dermatitis

Atopic dermatitis

Lichen planus

Pityriasis rosea

Psoriasis

Seborrhoeic dermatitis

Urticaria

Keratotic skin disorders

Actinic keratosis

Vesiculobullous skin disorders

Epidermolysis bullosa

Bullous pemphigoid

Pemphigus vulgaris

Desquamating skin disorders

Erythema multiforme

Stevens-Johnson syndrome

Skin integrity disorders

Pressure ulcer

Sunburn

Burns

Frostbite

Skin infections

Cellulitis

Erysipelas

Impetigo

Necrotizing fasciitis

Human papillomavirus

Varicella zoster virus

Poxvirus (Smallpox and Molluscum contagiosum)

Coxsackievirus

Herpes simplex virus

Candida

Malassezia (Tinea versicolor and Seborrhoeic dermatitis)

Pediculus humanus and Phthirus pubis (Lice)

Sarcoptes scabiei (Scabies)

Human herpesvirus 6 (Roseola)

Parvovirus B19

Varicella zoster virus

Measles virus

Rubella virus

Skin neoplasms

Vascular tumors

Human herpesvirus 8 (Kaposi sarcoma)

Angiosarcomas

Skin cancer

Hair and nail disorders

Alopecia areata

Telogen effluvium

Onychomycosis

Integumentary system pathology review

Pigmentation skin disorders: Pathology review

Acneiform skin disorders: Pathology review

Papulosquamous and inflammatory skin disorders: Pathology review

Vesiculobullous and desquamating skin disorders: Pathology review

Bacterial and viral skin infections: Pathology review

Skin cancer: Pathology review

Viral exanthems of childhood: Pathology review

Assessments

Sarcoptes scabiei (Scabies)

Flashcards

0 / 8 complete

USMLE® Step 1 questions

0 / 1 complete

High Yield Notes

5 pages

Flashcards

Sarcoptes scabiei (Scabies)

of complete

Questions

USMLE® Step 1 style questions USMLE

of complete

A 37-year-old man presents to an outpatient clinic for evaluation of pruritus and skin lesions. The symptoms developed five weeks ago and have progressively worsened. The symptoms are diffuse but most prominent in the upper extremities. The patient frequently wakes up at night due to itching and has difficulty falling asleep again. Past medical history is notable for inflammatory bowel disease and hypertension. The patient worked as a fisherman but lost his job a year ago. Since then, he has been residing in a homeless shelter. His temperature is 37.2˚C (99.0˚F), pulse is 92/min, and blood pressure is 147/85 mmHg. The heart and lungs are clear to auscultation. Abdominal examination is unremarkable. Examination of the patient’s hands is shown below. Which of the following best describes the pathophysiology of this patient’s condition?


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Memory Anchors and Partner Content

External References

First Aid

2018

2017

Scabies p. 161, 200

Summary

Scabies is a highly contagious skin infection caused by the mite Sarcoptes scabiei. Scabies is spread through close physical contact with an infected person or by sharing clothing or bedding. Symptoms of scabies include severe itchiness and a pimple-like rash. Occasionally tiny burrows may be seen in the skin. These symptoms can be present across most of the body or just in certain areas such as the wrists, between fingers, or along the waistline. The itch is often worse at night. Treatment includes topical permethrin and oral ivermectin. Benzyl benzoate application is an alternative. It's also important to treat all close contacts, and to wash all clothing, bedding, and towels used by the infected person in hot water.

Elsevier

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