Lacunar Skull
photo by Janelle Aby, MD
This infant had craniotabes to such a degree that the area between the two fingers seemed as if if were a giant fontanelle. On imaging, bone was present in this area, and a diagnosis of lacunar skull (a.k.a. luckenschadel or craniolacunia) was given. Although frequently associated with Arnold-Chiari malformation or myelomeningocele, this child was otherwise well and had a normal brain MRI. One radiographic finding associated with lacunar skull is a scalloped appearance of the skull bones.
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