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Association of Piebaldism with Café-au-Lait Macules
Naveen Kumar Kansal1, Saurabh Agarwal2
1Department of Dermatology and Venereology, All India Institute of Medical Sciences, Rishikesh 249201, Uttarakhand, India; kansalnaveen@gmail.com.
Insights
This case report details a newborn diagnosed with piebaldism and café-au-lait macules (CALMs). Early diagnosis and counseling are crucial for managing this rare genetic skin condition.
Area of Science:
- Dermatology
- Clinical Genetics
- Pediatrics
Background:
- Piebaldism is a rare autosomal dominant disorder characterized by congenital, benign, white macules and patches due to melanocyte absence.
- Café-au-lait macules (CALMs) are common hyperpigmented birthmarks that can be associated with various genetic syndromes.
Observation:
- A 45-day-old infant presented with asymptomatic, depigmented macules since birth, notably rhomboid-shaped on the abdomen and lower extremities.
- The infant also exhibited a depigmented forehead macule with leukotrichia and three hyperpigmented CALMs on the chest.
Findings:
- Clinical examination revealed characteristic depigmented macules and CALMs, leading to a diagnosis of piebaldism with CALMs.
- No consanguinity or significant family history was reported, and the infant was otherwise developing normally.
Implications:
- This case highlights the importance of recognizing piebaldism and associated CALMs in neonates.
- Genetic counseling is essential to discuss potential risks of associated syndromes like Legius syndrome or neurofibromatosis type 1 (NF1) and plan for regular follow-up.
Abstract:
A 45-day-old infant was brought by his parents to the dermatology outpatient department with chief complaints of asymptomatic, depigmented lesions that had been present on his skin since birth. On mucocutaneous examination, large rhomboid-shaped depigmented macules were noted on the abdomen and lower extremities bilaterally (Figure 1). A depigmented macule was present on the forehead, with white hair (leukotrichia; a "developing forelock") (Figure 2). Three hyperpigmented lesions (café-au-lait macules [CALMs]) were also noted on the chest (Figure 1a). There was no history of consanguinity, and the family history was negative. The infant was otherwise normal for his age. A diagnosis of "piebaldism with CALMs" was made, and his parents were counseled about the disease and its progression, and possible treatment options as the child grew. They were also informed about a currently unquantifiable risk of future development of Legius syndrome or neurofibromatosis type 1 (NF1), and were counseled for regular follow-up.
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