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Updated: Aug 11, 2026
05:57
The Synergistic Effect of Visible Light and Gentamycin on Pseudomona aeruginosa Microorganisms
Published on: July 2, 2013
Summary
Pseudomonas aeruginosa can cause greenish-black discoloration of the great toenail, a condition known as Pseudomonas chromonychia. This toenail fungus may be misdiagnosed as subungual hematomas, nevi, or melanomas.
Area of Science:
- Dermatology
- Microbiology
- Infectious Diseases
Background:
- Nail discoloration can present diagnostic challenges.
- Accurate diagnosis is crucial for appropriate treatment and patient management.
Observation:
- A patient presented with a greenish-black discoloration of the great toenail.
- Microscopic examination and culture identified Pseudomonas aeruginosa as the causative agent.
Findings:
- The greenish-black discoloration was confirmed to be Pseudomonas chromonychia.
- This condition can mimic other subungual pathologies.
Implications:
- Clinicians should consider Pseudomonas chromonychia in the differential diagnosis of nail discoloration.
- Distinguishing this infection from subungual hematomas, nevi, or melanomas is essential for correct treatment.
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