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The generalized rash: part II. Diagnostic approach
John W Ely1, Mary Seabury Stone
1University of Iowa Carver College of Medicine, 200 Hawkins Dr., Iowa City, IA 52242, USA. john-ely@uiowa.edu
American Family Physician
|March 17, 2010
Summary
Diagnosing generalized rashes involves a broad differential diagnosis, narrowed by focused history and key clinical features. This guide details common, uncommon, and rare causes and their distinguishing characteristics.
Area of Science:
- Dermatology
- Internal Medicine
Background:
- Generalized rashes present a diagnostic challenge requiring a systematic approach.
- An inclusive differential diagnosis is essential initially.
Purpose of the Study:
- To outline common, uncommon, and rare causes of generalized rashes.
- To describe key clinical features aiding in the differentiation of these rashes.
Main Methods:
- Review of common, uncommon, and rare causes of generalized rashes.
- Description of distinguishing clinical features, including history, lesion characteristics, distribution, and associated symptoms.
Main Results:
- Part I lists various etiologies of generalized rashes.
- Part II details specific historical elements and physical examination findings crucial for diagnosis.
Conclusions:
- A focused history and identification of key clinical features are vital for narrowing the differential diagnosis of generalized rashes.
- Understanding lesion characteristics, distribution, and systemic signs aids in accurate diagnosis.
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