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Infant heel nodules. Calcification of epidermal cysts
1Podiatric Medicine, Temple University School of Podiatric Medicine, Philadelphia, PA, USA.
Journal of the American Podiatric Medical Association
|February 16, 2002
Summary
Calcified heel nodules in neonates may result from epidermal implantation cysts, not just needle stick trauma. This finding offers a new perspective on neonatal heel lesions and their calcification.
Area of Science:
- Neonatal dermatology
- Pediatric pathology
- Dermatopathology
Background:
- Calcified nodules on neonate heels are typically linked to dystrophic calcification from needle stick trauma.
- Previous literature primarily attributes these lesions to iatrogenic injury in high-risk infants.
Observation:
- A case study presents an immature-birth weight neonate with multiple firm heel lesions appearing shortly after birth.
- The neonate had a history of multiple heel punctures for blood draws.
Findings:
- Histological examination revealed calcification foci and keratin fragments within the lesions.
- These findings suggest the lesions originated from epidermal implantation cysts that underwent secondary calcification.
Implications:
- This challenges the sole attribution of neonatal heel calcified nodules to needle stick trauma.
- It highlights epidermal implantation cysts as a potential alternative etiology for such lesions.
- Understanding the pathogenesis is crucial for accurate diagnosis and management of neonatal heel abnormalities.