In short: the exam helps recognize patterns, select lesions that need documentation or biopsy, and track changes over time.
What can be evaluated
Pigmented lesions
Moles and other color changes, always interpreted together with the clinical examination.
Non pigmented tumors
Vascular patterns and superficial structures can support the investigation.
Hair and nails
Trichoscopy and onychoscopy can support the evaluation of some conditions.
How it is done
The dermatoscope is brought close to or placed against the skin, using polarized light or a contact medium. The exam is usually quick, painless and integrated into the consultation.
What the exam can guide
- Clinical or photographic follow up.
- Selection of the best site for a biopsy.
- Prioritization of lesions that require investigation.
- Correlation between symptoms, evolution and the observed pattern.
Limits
Dermoscopy improves the evaluation, but it does not replace histopathologic examination when a biopsy is indicated. An isolated photograph also does not reproduce the full in person evaluation.
Related content
When should a mole be evaluated? (in Portuguese) · Skin biopsy
Further reading by Dr. Diego on the Clínica QARA blog (in Portuguese): mole mapping and digital dermoscopy.