Sturge–Weber syndrome
Sturge–Weber syndrome
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Sturge–Weber syndrome - Wikipedia

Unlike other phakomatoses, Sturge–Weber occurs sporadically (i.e., does not have a hereditary cause).
Sturge–Weber syndrome
Sturge–Weber syndrome - Wikipedia

Unlike other phakomatoses, Sturge–Weber occurs sporadically (i.e., does not have a hereditary cause).