Dermoid Schädelkalotte

Imaging of

skull vault tumors in adults. Epidermoid cysts (a–c and d–f) and dermoid cyst (g–i). Case 1 (a–c): Extracranial soft-tissue mass (arrows) remodeling the outer table on NECT (a), with fluid T2-signal (b), and markedly restricted diffusion (b = 1000) (c). Case 2 (d–f): Transdiploic mass (arrowheads), predominantly intracranial, T1WI (d) and T2WI (e) heterogenous and intense diffusion restriction (f). Case 3 (g–i). Frontal skull lesion (dashed arrows) disrupting the inner table on CT (g, h); content is CT-hypodense and T1-hyperintense, corresponding to fat (i)

Radiological

review of skull lesions. Dermoid cysts. Patient 1: Axial head CT (a) depicts a midline fat-containing lesion in the frontal region (thick arrow). Patient 2: Axial bone window (b) and coronal soft tissue window head CT (c) show a dermoid cyst in the left frontal bone involving the outer table (dashed arrows). Patient 3: Axial CT (d) and coronal head CT portray a fat-containing lesion in the left grater wing of the sphenoid (arrowheads)