A
dermoid cyst is a
teratoma of a
cystic nature that contains an array of developmentally mature, solid tissues. It frequently consists of
skin,
hair follicles, and
sweat glands, while other commonly found components include clumps of long
hair, pockets of
sebum,
blood,
fat,
bone,
nails,
teeth,
eyes,
cartilage, and
thyroid tissue.