Types of Cyst on Head
There are several types of cysts on head:
Dermoid CystDermoid cysts, known as pilar cysts, are congenital type of cysts that contain hair, fluid, teeth or sweat glands. Dermoid cysts can be located on or in the skin and usually occur on the face, lower back, inside the skull or in the ovaries. They are benign cysts and are not tender. Dermoid cysts rarely develop into cancer but sometimes may cause squamous cell carcinoma in adults and endodermal sinus tumor in children.
Epidermoid CystsEpidermoid cysts are also called sebaceous cysts and represent closed sac under the skin filled with fluid. They are generally painless, benign cysts that usually arise from swollen hair follicle. However, epidermoid cysts may also result from skin trauma. They are often located on the skin of the neck, face and trunk. Most epidermoid cysts don’t require treatment or cause problems but sometimes may be infected by bacteria or acne. Gardener’s syndrome can be accompanied with epidermoid cysts.
Preauricular SinusPreauricular sinus is a congenital malformation characterized by epithelial mounds or pedunculated skin located near the front of the ear. It is also known as skin tag and it is commonly benign. Sometimes, preauricular sinus can be infected and develop pus. Commonly, this sinus doesn’t require treatment.
Lumps in the neck are common and often benign. They may appear from top of the head to the bottom of the neck. There are several different types of neck lumps and they include: swollen lymph glands, thyroglossal duct cyst and branchial cleft cyst.
Cystic acne is the harshest and the most painful form of acne. They may appear on the scalp but on other areas of the body as well. Blocked and infected oil ducts can cause this type of cyst on head. These cysts usually require treatment.