Cellulitis

6,103views

Videos

Notes

Cellulitis

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

Cellulitis

Flashcards

0 / 8 complete

USMLE® Step 1 questions

0 / 1 complete

High Yield Notes

16 pages

Flashcards

Cellulitis

of complete

Questions

USMLE® Step 1 style questions USMLE

of complete

A 36-year-old man presents to the emergency department for evaluation of a rash on the right forearm. The patient was recently admitted to the hospital for pain-control in the setting of nephrolithiasis. He recalls, “After I left, I was feeling fine, then the next day my arm started hurting, and I noticed a red rash near the site where I had my IV.” He is otherwise healthy and does not take any medications daily. Temperature is 38.0°C (100.4°F), pulse is 110/min, respirations are 14/min, and blood pressure is 119/77 mmHg. Physical examination demonstrates a well demarcated erythematous, warm, and painful rash over the anterior aspect of the right forearm without fluctuance. Infection with which of the following organisms is most likely responsible for this patient’s cutaneous findings?

Memory Anchors and Partner Content

External References

First Aid

2022

2021

2020

2019

2018

2017

2016

Cellulitis p. 491

Pasteurella multocida p. , 147

Streptococcus pyogenes p. , 134

Herpes simplex virus (HSV-1/HSV-2)

skin infections p. 491

Skin infections p. 491

Staphylococcus aureus p. , 133

skin infections p. 491

Staphylococcus pyogenes

skin infections p. 491

Streptococcus pyogenes (Group A strep) p. 134

skin infections p. 491

Viral skin infections p. 491

Summary

Cellulitis is a localized infection and inflammation of the skin and subcutaneous tissue. It most commonly affects the lower extremities, particularly the legs. Cellulitis is usually caused by Streptococcus pyogenes or Staphylococcus aureus. If left untreated, it can lead to sepsis.

Elsevier

Copyright © 2023 Elsevier, except certain content provided by third parties

Cookies are used by this site.

USMLE® is a joint program of the Federation of State Medical Boards (FSMB) and the National Board of Medical Examiners (NBME). COMLEX-USA® is a registered trademark of The National Board of Osteopathic Medical Examiners, Inc. NCLEX-RN® is a registered trademark of the National Council of State Boards of Nursing, Inc. Test names and other trademarks are the property of the respective trademark holders. None of the trademark holders are endorsed by nor affiliated with Osmosis or this website.

RELX