<unk> s are a<unk>  condition, a group of different cysts lined by<unk>  epithelium. Types of cysts included in this group are: :* Bronchogenic cyst :* Branchial cyst :* Thyroglossal duct cyst :*<unk>  ciliated cyst :* Median raphe cyst
Cutaneous columnar cyst
Eruptive vellus hair cyst
Adenoma sebaceum
Dermal cylindroma
Sebaceous cyst
Onychomatricoma
Congenital dermal sinus
Keratin implantation cyst