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Morphologic changes of a pigmented Spitz nevus assessed by dermoscopy
Maria A Pizzichetta1, Giuseppe Argenziano, Giorgio Grandi
1Division of Medical Oncology C-Oncology Prevention, National Cancer Institute, Aviano, Italy.
Journal of the American Academy of Dermatology
|June 22, 2002
Summary
Pigmented Spitz nevi can mimic melanoma. Dermoscopy revealed evolving globular and starburst patterns in a Spitz nevus, suggesting distinct evolutionary phases of this skin lesion.
Area of Science:
- Dermatology
- Dermoscopy
- Histopathology
Background:
- Pigmented Spitz nevi present a diagnostic challenge, often mimicking cutaneous melanoma clinically and histopathologically.
- Accurate characterization of Spitz nevi is crucial for appropriate patient management and to avoid unnecessary invasive procedures.
Observation:
- A single pigmented Spitz nevus in a 3-year-old boy was monitored over six months using dermoscopy.
- The lesion, initially presenting as a brownish-black papule, was clinically diagnosed as a Reed nevus.
Findings:
- Initial dermoscopic examination revealed a globular pattern.
- After three months, the lesion exhibited a starburst pattern, which persisted in a modified form at six months.
- These distinct dermoscopic patterns are hypothesized to represent different evolutionary phases of pigmented Spitz nevi.
Implications:
- Dermoscopy is a valuable tool for characterizing the evolution of pigmented Spitz nevi.
- Recognizing these evolving dermoscopic patterns may aid in differentiating Spitz nevi from melanoma.
- Further studies are warranted to confirm these findings and establish definitive diagnostic criteria.