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Pyoderma gangrenosum: an unusual cause of periaural ulceration
1Otolaryngology Department, Ninewells Teaching Hospital, Dundee.
The British Journal of Clinical Practice
|November 1, 1995
Abstract:
A case of pyoderma gangrenosum affecting the pinna and neck of a diabetic patient is reported. Appearances were suggestive of malignant otitis externa. A small biopsy resulted in rapid and aggressive exacerbation of the lesion. Pyoderma gangrenosum, although uncommon, should be considered as a cause of ulceration, particularly when the ulcer yields no growth on culture in a non-dependent area.
Insights
Pyoderma gangrenosum can affect the ear and neck, mimicking infections in diabetic patients. Biopsy can worsen these rare ulcers, highlighting the need for careful diagnosis.
Area of Science:
- Dermatology
- Otolaryngology
Background:
- Pyoderma gangrenosum is a rare, ulcerative neutrophilic dermatosis.
- Malignant otitis externa is a serious infection of the ear canal.
Observation:
- A diabetic patient presented with lesions on the pinna and neck resembling malignant otitis externa.
- A biopsy of the lesion led to rapid and severe exacerbation.
Findings:
- The case highlights pyoderma gangrenosum as a differential diagnosis for ulcerative lesions.
- Ulceration without microbial growth in non-dependent areas can suggest pyoderma gangrenosum.
Implications:
- Clinicians should consider pyoderma gangrenosum in unexplained ulcerations, especially after procedures.
- Prompt and accurate diagnosis is crucial to avoid iatrogenic worsening of pyoderma gangrenosum.