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Tips for diagnosis and treatment of nail pigmentation with practical algorithm
Bianca Maria Piraccini1, Emi Dika1, Pier Alessandro Fanti1
1Division of Dermatology, Department of Experimental, Diagnostic and Specialty Medicine, University of Bologna, Via Massarenti 1, Bologna 40138, Italy.
Dermatologic Clinics
|April 2, 2015
Summary
Black-brown nail pigmentation can indicate melanoma, but is usually benign. Differentiating nail melanoma from other causes like hematoma or benign conditions requires careful clinical evaluation for proper management.
Area of Science:
- Dermatology
- Oncology
Background:
- Black-brown nail pigmentation is a common clinical observation.
- This pigmentation can cause patient and clinician alarm due to its association with nail apparatus melanoma.
- However, nail melanoma is a rare cause of nail discoloration.
Purpose of the Study:
- To differentiate between malignant melanoma and benign causes of nail pigmentation.
- To guide clinicians in managing melanonychia in both pediatric and adult patients.
Main Methods:
- Clinical history taking.
- Physical examination of the nail apparatus.
- Differential diagnosis of nail pigmentations.
Main Results:
- Melanonychia has numerous causes, including subungual hematoma, exogenous pigments, and benign melanocytic conditions.
- Malignant melanoma of the nail apparatus is a less frequent cause of brown-black nail discoloration compared to benign conditions.
Conclusions:
- Distinguishing nail melanoma from other causes of melanonychia is crucial for appropriate patient management.
- A thorough clinical assessment is essential for accurate diagnosis and treatment planning.
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