Search
  • Dr. Vu Kiet Tran MD CCFP

Are you correctly diagnosing cellulitis?


You think you can diagnose cellulitis?

Well, think again. Diagnosing cellulitis may be seemingly easy but it is fraught with pitfalls. Numerous studies show the misdiagnosis rate is over 30% (1, 2).

Cellulitis is a common skin infection and usually first evaluated by primary care, urgent care, or emergency department physicians. Many patients with presumed cellulitis are given empiric antibiotics and many are even hospitalized, leading to potential waste and unnecessary exposure to antibiotics for those misdiagnosed.

Common mimickers are:

- venous stasis dermatitis

- acute lipodermatosclerosis

- Erythema Migrans

- deep vein thrombosis

- gout

- lymphedema

- eczema

- Erythema Nodosum

- contact dermatitis

These conditions are collectively known as “Pseudocellulitis”

In addition, cellulitis is overwhelmingly unilateral. If you see bilateral redness and swelling, think again. It will not be cellulitis. Features that are NOT suggestive of cellulitis are:

1) bilateral or symmetrical presentation

2) lack of pain

3) mainly pruritic

4) long-standing with acute flares

5) progressive course

6) non-response to appropriate antibiotic therapy

Cellulitis misdiagnosis is common due to mimickers. Beware of “pseudocellulitis” and be sure antibiotics are appropriately given. One cannot diagnose what one does not know or remember. Make sure you keep a wider list of differential diagnoses when confronted with a red, painful, swollen limb.

(1) JAMA Dermatol. 2018: 154(4): 529-536.

(2) JAMA Demermatol. 2017; 153 (2): 141-146


0 views
Previous and future planned cities include:
Vancouver - The Review Course in Family Medicine Exam Prep
Calgary  - The Review Course in Family Medicine Exam Prep
edmonton-77799_640.jpg
sunset-370244_640.jpg
winnipeg-165374_640.jpg
Toronto - The Review Course in Family Medicine Exam Prep
Calgary  - The Review Course in Family Medicine Exam Prep
Vancouver - The Review Course in Family Medicine Exam Prep

© The Review Course in Family Medicine Inc. | About Us | Privacy Policy

Disclosures: The Review Course founders have no conflicting commercial interests. As is the case with any private events hosted on a university campus or hospital, this event is not affiliated with nor endorsed by the host venues. Our materials are peer-reviewed and prepared by Canadian physicians; we do not guarantee that our preparation materials are representative of any Canadian examination and we do not provide questions from any other examination nor are they intended as medical advice. The College of Family Physicians of Canada does not affiliate with nor endorse any exam preparation course.

Highly Rated - Thousands of Attendees
  • Wix Facebook page
  • Wix Twitter page
  • Instagram