Epidermal Cyst

Epidermal Cyst
Body Parts: Whole Body
Medical Subjects: Skin

What Is An Epidermal Cyst

What disease is epidermocyst?

Epidermal cyst is a benign tumor of skin adnexa, and its cyst wall is composed of epidermis, because its cyst cavity is filled with keratinous substances, also known as keratocyst.

Where does epidermocyst often occur?

The disease can occur in any part of the body, but it often occurs in the head and face, trunk and hip, which is one of the common diseases in the dermatology department.

How is epidermoid cyst caused?

Most of the epidermal cysts originate from the residual tissues of ectopic embryos, and a few are caused by the epidermis being implanted into the dermis due to trauma.

What symptom does epidermocyst have?

Patients with this disease generally have no subjective symptoms, and often present with a hemispherical raised mass on the skin surface, with normal color of local skin, ranging in size from 0.5 cm to several centimeters.

How does epidermoid cyst treat?

Epidermal cysts generally do not require special treatment. When treatment is needed, surgical resection is the main treatment, and the prognosis is good after surgery.

Is epidermal cyst common?

Clinically common.

In which population are epidermocyst common?

Epidermoid inclusion cysts are common in men, with a male to female ratio of 2:1, and are more common in children and adolescents.

Patients with acne have a high rate of formation of epidermal inclusion cysts due to the destruction of hair follicles and clogged pores. Elderly patients who have been exposed to long-term sunlight are also more likely to have epidermal inclusion cysts due to chronic irradiated skin damage.

Is epidermocyst malignant? Will it change?

Epidermal cyst is a benign tumor of the skin adnexa. In very rare cases, epidermal cysts can become skin cancer.


What Is The Etiology Of Epidermal Cysts

What are the common causes of epidermal cysts?

The cyst wall of the epidermoid inclusion cyst consists of normal stratified squamous epithelium derived from the infundibular portion of the hair follicle. The etiology is currently unknown and the disease may be primary or secondary.

Primary epidermal cysts are mainly caused by the obstruction of hair follicle pores, and the punctum in the center of the cyst communicates with the skin surface.

Secondary epidermal cysts can occur as a result of trauma after dermal implantation of hair follicle epithelium. Also known as traumatic epidermal cyst, often occurs in the palm and sole.

Extra-colonic manifestations of human papillomavirus, chronic ultraviolet radiation, Gardner syndrome, or familial adenomatous polyposis (FAP) may also present with epidermoid inclusion cysts.

In which population do epidermal cysts often occur?

Epidermal cysts can occur in anyone, but are common in children and young adults. In addition, people with certain rare genetic disorders, such as Gardner's syndrome, and often skin trauma are also susceptible to epidermal cysts.


What Symptom Does Epidermocyst Have

What are the common symptoms and manifestations of epidermal cysts?

  • Epidermoid cyst is easy to occur in children and young people, generally without conscious symptoms.

  • Cysts often present as hemispherical raised masses on the skin surface, with normal local skin color, and a hard, elastic, movable mass with a diameter ranging from 0.5 cm to several centimeters, and a small pit at the center of the mass.

  • Cysts grow slowly and generally grow to such an extent that they no longer grow.

  • The disease can occur anywhere in the body, but is common in the head and face, trunk, and buttocks, often occurring alone or in several.

  • When secondary infection occurs with an epidermal cyst, there is redness of the skin, skin sensitization pain, increased skin temperature, and an off-white, cream-like, malodorous substance excreted in the cyst.

What complications can epidermal cyst cause?

  • Local inflammatory response: The cyst becomes soft and locally inflamed with pain, and it is recommended to perform surgery after the inflammation subsides;

  • Cyst rupture: Severe infection may occur secondary to cyst rupture, requiring active treatment;

  • Secondary infection: Secondary infection of cysts can form local abscesses that require active surgical treatment;

  • Skin cancer: This is rarely the case.


How To Check For Epidermocyst.

What examinations do epidermal cysts need to be diagnosed? Why do you want to do these check?

Usually, doctors can make a diagnosis by observing cysts. The typical manifestation is that there is a movable mass with a small hole in the center on the skin, which appears just below the skin in the form of nodules.

Skin biopsy, soft tissue color Doppler ultrasound and skin culture are feasible when necessary.

  • Skin biopsy can further clarify the composition of cyst, and then differentiate it from other skin cyst diseases, such as dermoid cyst and sebaceous cyst.

  • When cyst is large, soft tissue color Doppler ultrasound can be used to differentiate skin hemangioma and other diseases.

  • When epidermic cyst is infected, it will often lead to cyst rupture, and the infection source often comes from normal skin flora, such as Staphylococcus aureus and Staphylococcus epidermidis, which may require bacterial culture. When necessary, drug sensitivity test is feasible to guide the use of antibiotics.

  • Epidermal cyst can be diagnosed by histological examination. The cavity of cyst is filled with lamellar cutin and keratin granules. Keratinous granuloma can be seen by histological examination when the cyst is ruptured.

How to distinguish epidermis cyst from sebaceous cyst (powder tumor)?

  • Sebaceous cyst is caused by sebaceous gland excretory disorder, which occurs in the rich sebaceous glands, such as scalp, face, chest and back, etc. There is a pinhole-like black opening in the center of the cyst, which is shaped like acne, and bean curd residue-like contents can flow out when squeezed.

  • Generally, there is no acne-like opening in the center of the cyst, and there is no bean curd residue-like content flowing out after extrusion.


How To Prevent Epidermal Cyst.

Can epidermal cyst be prevented?

It can't be prevented, because most epidermocyst originates from ectopic embryo residual tissue, which is a congenital pathogenic factor, so it can't be prevented.

How to identify epidermal cyst early.

  • Learn the relevant knowledge of epidermal cyst and understand the relevant manifestations of epidermal cyst;

  • Pay more attention to self-examination at ordinary times. If local skin tumor is found, see a doctor in time to make a definite diagnosis.


How To Treat Epidermal Cyst.

Which department should I see for epidermal cyst?

Dermatology or general surgery.

How to treat epidermal cyst?

  • Epidermal cysts generally have no subjective symptoms and do not affect the normal life of patients, so special treatment is not needed, and regular observation and follow-up are enough.

  • However, when cysts cause discomfort to patients or affect cosmetic outcomes, aggressive surgical treatment is required. Surgery requires complete resection of the cyst wall and the contents of the cyst cavity, or else recurrence may occur.

  • When causing symptoms or showing signs of inflammation (red swelling and hot pain), further treatment is needed, and appropriate anti-infection treatment can be given. If necessary, surgical treatment is needed to discharge the cyst or perform surgical resection. Surgical removal of the cyst wall is the key to reduce the recurrence of the disease.

  • If the inflammation is more severe and there is a fluctuating lesion, then incision and drainage combined with anti-inflammatory therapy are needed and surgical resection is required at a later date.

Under what circumstance does epidermoid cyst need active operation to treat?

  • Cysts rapidly increase;

  • Cyst rupture, pain or infection;

  • Cysts in often provocative positions;

  • Cysts affect cosmetology;

  • Cysts in special locations, such as the fingers and toes.

Under what circumstance does epidermoid cyst not suit immediate operation?

In the case of secondary local inflammatory reaction of epidermoid cyst, even if it is not infected, the operation is difficult at this time due to unclear cyst boundary, and immediate operation is generally not recommended. After the local inflammation subsided, surgical resection was performed.

What are the common risks of surgical treatment of epidermal cysts?

  • Bleeding;

  • Infection, including wound infection and systemic infection;

  • Wound scar healing, affect the beauty.

Does epidermoid cyst postoperative meeting relapse?

Yes. Postoperative recurrence is easy in patients with an uncut cyst wall. In addition, after complete resection of the cyst, recurrence may occur in other parts of the body.

Do you need reexamination after operation of epidermoid cyst? How?

Need. One month after surgery, our patient required an outpatient re-examination for a physician's assessment of her postoperative recovery. If the patient recovers well, follow-up observation can be conducted by oneself.

What is the prognosis of epidermal cysts?

Epidermoid inclusion cysts generally do not cause serious consequences and have a good prognosis after complete surgical removal of the cyst contents and the cyst wall. Patients in the acute inflammatory phase also have a good prognosis after anti-inflammatory symptomatic treatment and surgical resection.


What Should Epidermal Cyst Patient Notice In Life

Does operation of epidermoid cyst affect diet?

No effect. Most of the operations for epidermal cysts are local anesthesia, and the patient can eat normally after the operation.

What does epidermocyst patient need to notice in life?

  • Do not often squeeze the epidermal cyst;

  • Pay attention to the observation of changes in cysts, in case of cysts quickly become larger, rupture, pain, infection and other abnormal situation, timely treatment;

  • Eat a healthy and balanced diet, stop smoking and drinking alcohol, strengthen physical exercise, and increase the body's immunity.

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