During the corona virus disease 2019 pandemic, I (UE) reviewed a recent case data because I had some free time since we only perform emergency surgeries. While looking at the postoperative brain tomography images of a 45-year-old patient who had undergone surgery due to a giant olfactory groove meningioma (Fig. 1), my 5-year-old daughter said that the beautiful skull image on the screen looked like those on my tie. Indeed, it really looked like the skull shapes on my tie. Anatomically, the lower jaw was formed by the dorsum sella, the mouth by the sella turcica, the upper jaw by the tuberculum sella, and the perfect black image of the eyes and nose by the sphenoid sinus (Fig. 2 and Cover). A skull in a skull, what an amazing image! Maybe these days we should view the world through the eyes of a child.

Fig. 1
figure 1

The cranial computerized tomography (left side) and magnetic resonance imaging (right side) of the patients with olfactory groove meningioma in axial section

Full size image
Fig. 2 and Cover
figure 2

A child’s observation: “same skull” on her father’s tie (left side) and a patient’s cranial computerized tomography on the father’s computer (right side)

Full size image