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A 10-month-old girl presented with a soft swelling over the head vertex noted at the age of 2 months (figure 1). Physical examination showed a well-defined mass of 2.5 cm × 1.5 cm covered by undamaged skin. The lesion was neither pulsating nor painful. Ultrasonography showed a subcutaneous hypoechogenic cystic lesion without vascularisation. MRI showed a homogeneous T1-weighted hypointense and T2-weighted hyperintense non-vascularised mass without intracranial extension (figure 2); CT scans …
Funding The authors have not declared a specific grant for this research from any funding agency in the public, commercial or not-for-profit sectors.
Competing interests None declared.
Patient consent Parental/guardian consent obtained.
Provenance and peer review Not commissioned; externally peer reviewed.
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