ULTRASOUND FINDING OF DERMOID CYSTS LOCATED IN NECK REGION: SACK-OF-MARBLES SIGN

Gülhane Military Medical Academy, Department Of Radiology, Ankara, Turkey Dermoid cysts around neck region are developmental pathologies that lined with ecdodermally derived squamous epithelium. They contain a variable number of skin appendages (sebaceous glands, hair follicules and sweat glands). As a result, the lumen of the cyst is filled with a mixture of keratin, sebaceous material and occasionally hair. These cysts may appear to be filled with “marbles” due to the coalescence of fat into small nodules within the fluid matrix. This so called appearance “sack-of-marbles” is attributed virtually typical to dermoid cysts in the neck region. Here in this study, such a case with its ultrasound documentation is presented. Keywords : Dermoid cyst, neck, ultrasound