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Blue scalp discoloration in infants caused by exogenous source
Sarah Catalano1, Vicki Roberts2, Markus Boos3,4
1Children's Hospital of Philadelphia, Philadelphia, Pennsylvania.
Insights
Blue scalp patches in infants are often concerning, but two cases revealed the cause was benign ink transfer from baby wipe packaging. This highlights an important, easily overlooked, exogenous cause of infant scalp pigmentation.
Area of Science:
- Pediatric Dermatology
- Neonatal Care
Background:
- Infant scalp blue patches present a wide differential diagnosis.
- Considerations include vascular malformations, melanocytic lesions, and trauma.
Observation:
- Two infants presented with blue discoloration on the vertex scalp.
- Initial concerns prompted recommendations for advanced imaging and biopsy.
Findings:
- The blue pigmentation in both cases resulted from ink transfer from baby wipe packaging stickers.
- This represents an exogenous, benign cause of scalp discoloration.
Implications:
- Recognizing this benign cause can prevent unnecessary diagnostic procedures.
- Clinicians should consider external factors in evaluating infant scalp lesions.
Abstract:
A blue patch on the vertex scalp of an infant has a broad differential diagnosis, including vascular malformations, melanocytic lesions, trauma, and exogenous or endogenous pigmentation. We present two cases of infants who developed blue patches on the scalp. Extensive examination including MRI and biopsy was recommended for one of the patients to further characterize the lesion and its possible medical implications. In both, the blue discoloration had been due to repetitive contact with the sticker on a tub of baby wipes that had rubbed off onto the scalp. We present these infants to highlight this exogenous and benign cause of blue pigmentation and help practitioners avoid unnecessary examination.
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