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Histopathologic features of Spitzoid lesions in different age groups
Adriana Diaconeasa1, D Boda, C Solovan
1Dermatology Ambulatory Care Center, “Grigore Alexandrescu” Clinical Emergency Hospital for Children, Bucharest, Romania.
Summary
Diagnosing Spitzoid tumors is challenging. Worrisome features like pagetoid growth are linked to patient age, not solely tumor type, requiring comprehensive evaluation.
Area of Science:
- Dermatopathology
- Oncology
- Pediatric Dermatology
Background:
- Spitzoid lesions present diagnostic challenges, even for experienced dermatopathologists, due to their potential for malignancy.
- Accurate differentiation between Spitz nevi, atypical Spitz tumors, and Spitzoid melanomas is crucial for patient management.
Purpose of the Study:
- To evaluate the diagnostic value of morphologic parameters in differentiating Spitzoid tumors across different age groups.
- To identify age-related variations in the presentation of Spitzoid lesions.
Main Methods:
- Analysis of 28 Spitzoid tumors from 15 children and 13 adults, including Spitz nevi, atypical Spitz tumors, and Spitzoid melanomas.
- Comparative assessment of various morphologic features (e.g., pagetoid growth, mitoses, ulceration) in relation to patient age and tumor type.
Main Results:
- Pagetoid growth and melanin in the keratin layer were more frequent in young children.
- In adults, isolated cells at lateral margins and deep mitoses were associated with malignancy.
- Ulceration was more common in peripubertal children than adults, possibly due to trauma.
Conclusions:
- Worrisome morphologic features in Spitzoid tumors correlate more with patient age than tumor type.
- A single morphologic feature is insufficient for diagnosis; a comprehensive approach integrating clinical, morphologic, immunohistochemical, and molecular data is essential.
- Dermatopathologist experience remains a critical factor in the final diagnosis of Spitzoid lesions.
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