Article Figures & Data
Figures
- Fig 1.
Scanogram demonstrates multiple soft-tissue masses involving most of the posterior scalp, extending caudally to involve the posterior cervical region.
- Fig 2.
A, Axial CT image obtained through the skull base demonstrates 2 complex subcutaneous cystic masses of the posterior aspect of the upper neck. The dominant mass has coarse regions of mineralization at the dependent portion. The smaller mass also has calcifications.
B, Axial CT image obtained caudal to the skull vertex demonstrates multiple masses with varying degrees and regions of mineralization.
C, Axial noncontrast CT image obtained through the centrum semiovale demonstrates that the degree of mineralization is not related to the size of the masses.
- Fig 3.
Photograph of a gross pathology specimen demonstrates 2 subcutaneous complex cysts that contain a viscous turbid fluid with multiple nodules firmly attached to the wall.
- Fig 4.
Photomicrograph of cysts with eosinophilic centers lined by walls of stratified squamous epithelium. Arrowhead indicates calcifications in the center of the cyst; ○, keratin within cyst; and asterisk, the cyst wall (hematoxylin and eosin [H&E], original magnification, 100×).
- Fig 5.
Photomicrograph of lobulation of the cyst wall with piling up of the squamous epithelium (asterisk), characteristic of a proliferating trichilemmal cyst. Open circle indicates cyst cavity filled with keratin (hematoxylin and eosin [H&E], original magnification, 400×).
