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Subcutaneous Aspergillus nodule with cutaneous Enterococcus infection
Makoto Kondo1, Keiichi Yamanaka1
1Department of Dermatology, Mie University, Graduate School of Medicine, Tsu, Mie 514-8507, Japan.
Oxford Medical Case Reports
|September 16, 2021
Summary
A deep skin infection was diagnosed in an elderly woman presenting with a forearm nodule. Culturing both surface scales and deeper tissue identified bacterial and fungal pathogens, preventing misdiagnosis.
Area of Science:
- Dermatology
- Infectious Diseases
- Medical Mycology
Background:
- Subcutaneous nodules can present with diverse etiologies, including infectious causes.
- Accurate identification of causative organisms is crucial for effective treatment of deep-seated infections.
Observation:
- An 87-year-old female presented with a left forearm subcutaneous nodule.
- The nodule exhibited black and yellow scales on its surface.
Findings:
- Bacterial culture of skin surface scales yielded *Enterococcus faecalis*.
- Subcutaneous tissue culture identified *Aspergillus fumigatus*.
- This dual infection highlights the importance of comprehensive culturing techniques.
Implications:
- Failure to culture deeper tissue may lead to misidentification of the infectious agent.
- Comprehensive sampling is essential for diagnosing deep-seated infections.
- This case underscores the need for thorough diagnostic approaches in subcutaneous infections.
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