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Clinical features and outcomes of paediatric Spitz-type lesions
D Patel1, R Chawla2, A J K Patel2
1School of Clinical Medicine, University of Cambridge, UK.
Insights
Pediatric Spitz-type lesions are typically benign and have excellent outcomes, with no recurrences or metastases reported after excision. Aggressive management is not recommended for clinically unremarkable cases in children.
Area of Science:
- Dermatology
- Pediatric Oncology
- Pathology
Background:
- Management guidelines for Spitz-type lesions in children are lacking.
- Current UK recommendations favor a conservative approach with a low threshold for excision.
- Clarifying clinical features and outcomes is crucial for informed management.
Purpose of the Study:
- To describe the clinical characteristics of Spitz-type lesions in pediatric patients.
- To evaluate the outcomes and recurrence rates of these lesions.
- To inform management strategies for Spitz-type lesions in children.
Main Methods:
- Retrospective cohort study of pediatric patients (≤18 years) with histologically confirmed Spitz-type lesions.
- Data collected included demographics, lesion details, follow-up duration, and outcomes.
- Study conducted at Addenbrooke's Hospital, UK, from November 2014 to September 2020.
Main Results:
- Ninety-one children were included: 70.3% classic Spitz/spitzoid nevi, 28.6% atypical Spitz tumors, 1.1% spitzoid malignant melanoma.
- Common clinical features included amelanosis (22%), raised bump (44%), bleeding (12.1%), and non-uniform color (25%).
- No local recurrence, distant metastases, or mortality were reported after excision, with most patients discharged without follow-up.
Conclusions:
- Pediatric Spitz-type lesions demonstrate exceptionally good outcomes and are predominantly benign.
- Clinically banal Spitz-type lesions in children represent a low-risk condition.
- Aggressive management strategies are not advocated for these lesions in pediatric patients.
Introduction And Objectives:
No definitive management guidelines exist for Spitz-type lesions; recommendations in the UK favour a 'safe' approach with a low threshold for excision. We aimed to describe Spitz-type lesions in children to further clarify the clinical features and outcomes.
Methods:
We conducted a retrospective cohort study in Addenbrooke's Hospital, Cambridge, UK, and reviewed all patients aged ≤18 years with histologically confirmed Spitz-type lesions from November 2014 to September 2020. Information collected included patient demographics, lesion details, follow-up, outcomes and recurrence.
Results:
Ninety-one children (male: female 42: 49; mean age at diagnosis: 9.4 years, SD: 4.6 years) were identified. Among them, 64 (70.3%) had classic Spitz or spitzoid naevi, 26 (28.6%) atypical Spitz tumours and 1 (1.1%) had spitzoid malignant melanoma based on histological features. On assessing the clinical features, where documented, we found that 22.0% (20/91) had amelanosis, 44.0% (40/91) had a raised bump, 12.1% (11/91) displayed bleeding, 25.0% (20/80) had non-uniform colour, 96.7% (88/91) were de novo lesions, 55.1% (43/78) were evolving in size and 35.9% (28/78) were evolving in colour. Fifty-nine patients (64.8%) were discharged without the need for follow-up, and the other 32 had a median follow-up time of 4 months. After confirmed excision, no incidences of local recurrence, distant metastases or mortality have been reported to date in all patients.
Conclusions:
The outcomes for paediatric Spitz-type lesions continue to be exceptionally good, remaining a low-risk lesion, which is more likely to be benign in children. Hence, we do not advocate aggressive management strategies for paediatric patients with clinically banal Spitz-type lesions.
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