For cyst surgery in Osaka, go to Kamogawa Clinic Tenroku 「都島駅前クリニック」

When a boil/sebaceous cyst hurts

「おへその出口が閉じて、おへそが体に埋まってしまった状態」を想像して下さい。おへそにはゴマと言われる垢（アカ）がたまります。これは古い皮膚がはがれたもので、普通はお風呂で洗い流せば綺麗になります。しかし、おへそが皮膚に埋まって出口がふさがると垢がたまり、くさい臭いもしてきます、これが粉瘤です。体のどこにでもできるのでやっかいです。 粉瘤（ふんりゅう）・アテローマとは「皮膚の下に皮膚の上皮成分（表皮や外毛根鞘）が皮内や皮下に落ちて袋を形成し、その中に粥状をした垢や脂が貯まってできたかたまりです。」と日本形成外科学会のホームページで説明されています。

粉瘤の図：「おへその出口がふさがった」ようにみえると思います。 袋の中にアカ（垢）がたまっていて、おさえると小さな穴（開口部）からくさいものがでてきます。 いたくはれてくる前に、小さいうちに、手術で取りのぞくのが最も良い治療法です。

• It is a skin growth or lump that grows larger if left untreated.
• A lump is a buildup of dirt inside a bag.
• 内容物がでてくるとくさいにおいがします
• It may become red, swollen and painful
• There is no cure without surgery

1. 　粉瘤とは．．．　原因と初期の症状
2. 　粉瘤の出来やすい人
3. 　粉瘤に自然治癒ほぼありません
4. 　痛くなってきた　これは、炎症性粉瘤まで放置したということです
5. 　粉瘤の治し方は手術しかありませんか？
6. 　粉瘤治療の費用は？　手術給付金はもらえる？
7. 　粉瘤の見分け方　悪性の癌になりますか？
8. 　粉瘤が　おしり、デリケートゾーン、鼡径部、陰部、足の付け根、股にでき困っています
9. 　他のできもの　しこりとの違いが分からない

A sebaceous cyst or atheroma is "a mass formed when epithelial components of the skin (epidermis and outer hair root sheath) fall into or under the skin to form a sac, in which gruel-like dirt and sebum accumulate." according to the website of the Japanese Society of Plastic and Reconstructive Surgery (Sebaceous cyst | Japan Society of Plastic and Reconstructive Surgery (jsprs.or.jp)) as explained in

A sebaceous cyst is a subcutaneous tumor that can appear anywhere on the body and is not cancer. It is called a "lump of fat" but it is not actually fat. It is a cyst that is formed in a sac-like structure just below the skin, where dead skin cells and skin oils (sebum) that should fall off normally accumulate.

The initial symptoms are blackened pores and noticeable skin, and a slight lump that can be felt when touched closely. If left untreated, the lump will grow into a raised hemispherical mass. The lump is attached to the skin and feels harder than the surrounding area.

The cause of its occurrence is unknown. It can also occur after bruises or trauma, or as acne scars. Medically, it is a mass formed when the epithelial components of the skin (epidermis and outer hair root sheath) fall into or under the skin to form a sac, and porridge-like dirt and oil accumulate inside it.

They often appear on the back, neck, cheeks, and earlobes, and some people are more susceptible to them. However, it is not known what types of people are more susceptible to them.

It is rare for it to disappear naturally, and if left untreated, it will gradually grow and may exceed 10 cm in size. If you notice it, we recommend that you have it surgically removed before it starts to hurt. In most cases, it will be cured after a few days of treatment.

If it becomes infected, it will suddenly grow larger, become red, swollen, and painful, and may be mistaken for a boil. Many people visit the doctor saying, "I've had a tingling sensation for 2-3 days, but when I left it alone, it suddenly grew larger and became very painful yesterday." If left untreated, the skin will break and pus and a smelly porridge-like mass will be discharged. If you try to squeeze it when it's red and swollen, the sac may break and scatter into the fat tissue, resulting in a condition called pyoderma. Do not forcefully squeeze it to push out the contents, but consult a doctor as soon as possible to take medicine and receive treatment. It takes only a short time for it to tingle and become painful and swollen. If you visit a doctor in this state, it may take several weeks to heal completely, and you will regret it.

In plastic surgery, new doctors start by learning how to operate on cysts. The surgical method has not changed for over 40 years, and there are two surgical methods below. Each has its own advantages and disadvantages, so neither is better than the other. The time required is roughly the same. It is best to leave the method to the doctor.

-Fusin incision method

This method involves making a spindle-shaped incision in the skin directly above the cyst, removing the cyst, and suturing it.

Advantages: Large size can be treated. High chance of complete removal and low recurrence rate.

Disadvantages: A scar the length of the diameter of the cyst remains.

Hollowing method

This involves making a small round hole in the skin and pulling the cyst out through it.

Advantages: The scars after treatment are small. For facial cysts, this method may be tried first, but depending on the location and size of the cyst, the spindle incision method may be less noticeable.

Disadvantages: It is necessary to remove the cyst including its small exit, but in some cases the exit is difficult to see. Also, since the cyst is pulled out through a small hole, it is difficult for doctors to notice if part of the growth remains because it is not visible. In either case, the cyst will recur.

The cost is the same for either the spindle resection method or the excision method. The cost varies depending on the location and size of the tumor. In addition to the surgery fee, an examination fee will be charged. For insurance treatment, the fee is the same nationwide.

About surgery benefits

Those who are covered by medical insurance from a life insurance company or mutual aid association may be eligible to receive surgery benefits. Please note that payments will not be made unless the patient completes the procedure themselves. Usually, the doctor will fill out a form designated by the insurance company. If you are covered by a life insurance company or mutual aid association, please check with the insurance company.

Characteristics of sebum include the following:

• The skin is slightly raised, and there is a lump of a few millimeters to a few centimeters.
• A black dot (opening) in the center of the lump
• Sometimes something smells bad
• It is not painful or itchy, but when it becomes inflamed it becomes red, swollen, and painful.
• If inflammation is left untreated, it will burst and pus will come out.

Basically, if the cyst is not completely removed, it will recur. It has been reported that if left untreated and inflammation continues, it can develop into cancer, but this is rare. Even among plastic surgeons with over 30 years of experience, I think there are very few doctors who have examined patients whose cysts have become cancerous. (https://www.ncbi.nlm.nih.gov/pubmed/29681810)

Painful bumps that appear in these areas are often not sebaceous cysts, so care should be taken. Hidradenitis suppurativa is a skin disease that tends to occur on the buttocks, groin, armpits, under the breasts, and around the anus. Antibiotics (oral anti-suppurative medications) alone do not cure the condition completely, and surgery to remove the affected area with a scalpel is often required. In severe cases, biological agents may be administered. The cause is largely unknown, and it is said that genetics, smoking, obesity, bacteria, mechanical irritation, and hormones are all involved. An ultrasound examination can clearly distinguish it from a sebaceous cyst.

If the growths are in the genital area, people are embarrassed to go to the doctor, so they endure it and wait until it gets worse before coming to the doctor. They often appear in the areas where underwear elastic touches the skin. If it is in the early stages, it can be easily treated, so please come in as soon as possible.

Hidradenitis Suppurativa Stages and Severity (kingslun.com)　 Journal of the Japanese Dermatological Association, Vol. 131, No. 1 (jst.go.jp)

There are calcifying epithelioma, lipoma, ganglion, sebaceous cystoma, dermoid cyst, neurilemmoma, preauricular fistula, etc. In rare cases, there are malignant ones such as cancer. Doctors can easily distinguish them when they see them, but it is difficult to explain them to patients.

If you would like to know more, please click on the following link:

Calcific epithelioma | Japanese Society of Plastic Surgery (jsprs.or.jp)

Lipoma | Japanese Society of Plastic Surgery (jsprs.or.jp)

Ganglion5gangurion.pdf (jssh.or.jp)

Sebaceous cystosis

Dermoid Cyst | Japan Society of Plastic and Reconstructive Surgery (jsprs.or.jp)

Schwannoma

Ear (anterior) fistula | Japanese Society of Plastic Surgery (jsprs.or.jp)

About our cyst treatment＞＞