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A 8-year-old boy presented to the emergency department for symptomatic tachycardia (heart rate 180 bpm). According to his parents, his past history was unremarkable and he had normal neurological development.
On examination he was noted to have facial angiofibromas (figure 1A), hypomelanotic macules and a periungual fibroma (Koenen's tumour) on his toe (figure …
Contributors MM and PSB were involved in clinical management of the patient and wrote the paper. AB supervised the work and followed the patient. DL was the neuroradiologist who made the diagnosis and DV co-worked on the collection and interpretation of images. All authors contributed to, saw and approved the manuscript.
Competing interests None.
Patient consent Parental/guardian consent obtained.
Provenance and peer review Not commissioned; externally peer reviewed.
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