eczema marginatum

頑癬

WordNet

1. generic term for inflammatory conditions of the skin; particularly with vesiculation in the acute stages

PrepTutorEJDIC

1. 湿疹(しっしん)

Wikipedia preview

出典(authority):フリー百科事典『ウィキペディア（Wikipedia）』「2015/08/12 17:23:27」(JST)

wiki en

[Wiki en表示]

Tinea cruris
Tinea cruris on the groin
Classification and external resources
Specialty	Dermatology
ICD-10	B35.6
ICD-9-CM	110.3
DiseasesDB	29140
MedlinePlus	000876
eMedicine	derm/471

Tinea cruris, also known as crotch itch, crotch rot, Dhobi itch, eczema marginatum, gym itch, jock itch, jock rot, scrot rot and ringworm of the groin is a dermatophyte fungal infection of the groin region in any sex, though more often seen in males. In the German sprachraum this condition is called tinea inguinalis (from Latin inguen = groin) whereas tinea cruris is used there for a dermatophytosis of the lower leg (Latin crus).

Tinea cruris is similar to, but different from Candidal intertrigo, which is an infection of the skin by Candida albicans. The latter is more specifically located between intertriginous folds of adjacent skin, which can be present in the groin or scrotum, and be indistinguishable from fungal infections caused by tinea. However, candidal infections tend to both appear and with treatment disappear more quickly. It may also affect the scrotum.

Signs and symptoms

As the common name for this condition implies, it causes itching or a burning sensation in the groin area, thigh skin folds, or anus. It may involve the inner thighs and genital areas, as well as extending back to the perineum and perianal areas.

Tinea is often painful or itchy, but not in every case. There are visual clues to help identify a fungal infection. These include:

• Inflammation of the groin, anal area, and upper thigh - not including the genitals themselves
• slightly raised patch
• sharp borders
• expanding or spreading, with clearing in the center
• dry or scaly blisters (occasionally oozing or crusting)
• abnormally dark or light skin
• skin redness or inflammation

Fungal infections often spread out in a circle, leaving normal-looking skin in the middle. At the leading edge of the infection the skin is raised, red, and scaly.

Affected areas may appear red, tan, or brown, with flaking, rippling, peeling, or cracking skin.

The acute infection begins with an area in the groin fold about a half-inch across, usually on both sides. The area may enlarge, and other sores may develop. The rash has sharply defined borders that may blister and ooze.

Causes

Macroconidia from the Epidermophyton floccosum

Opportunistic infections (infections that are caused by a diminished immune system) are frequent. Fungus from an athlete's foot infection can spread to the groin through clothing. Tight, restrictive clothing, such as jockstraps, traps heat and moisture, providing an ideal environment for the fungus.

The type of fungus involved is usually Trichophyton rubrum. Some other contributing fungi are Candida albicans, Trichophyton mentagrophytes and Epidermophyton floccosum.

Prevention

Medical professionals suggest keeping the groin area clean and dry by drying off thoroughly after bathing and putting on dry clothing right away after swimming or perspiring.

Other recommendations are: not sharing clothing or towels with others, showering immediately after athletic activities, wearing loose cotton underwear, avoiding tight-fitting clothes, and using antifungal powders.

Treatment

Tinea cruris is best treated with topical antifungal medications of the allylamine or azole type. The evidence is best for terbinafine and naftifine but other agents may also work.

The benefits of the use of topical steroids in addition to an antifungal is unclear. There might be a greater cure rate but no guidelines currently recommend its addition. The effect of Whitfield's ointment is also unclear.

References

External links

• eMedicineHealth.com
• MayoClinic.com, jock itch.
• Jock Itch / Tinea Cruris Pictures (Hardin MD Super Site Samples)
• Genekeyes.com, how to Prevent Jock Itch with Rubbing Alcohol.

UpToDate Contents

全文を閲覧するには購読必要です。 To read the full text you will need to subscribe.

• 1. 急性掌蹠湿疹（異汗性湿疹） acute palmoplantar eczema dyshidrotic eczema
• 2. 重症難治性アトピー性皮膚炎（湿疹）のマネージメント management of severe refractory atopic dermatitis eczema
• 3. Sézary症候群の臨床症状、病理学的特徴、および診断 clinical presentation pathologic features and diagnosis of sezary syndrome
• 4. アトピー性皮膚炎（湿疹）の治療 treatment of atopic dermatitis eczema
• 5. IgEとアレルギー疾患の関係 the relationship between ige and allergic disease

English Journal

• [The history of dermatology. On the 150th birthday of Heinrich Köbner].

• Scholz A.
• Dermatologische Monatschrift.Dermatol Monatsschr.1989;175(2):111-7.
• Report on Heinrich Köbner's biography and his most important merits: foundation of dermatological clinics in Breslau (Wroclaw), Köbner-phenomenon of psoriasis, evidence of fungi in sycosis parasitaria and eczema marginatum, discovery of drug rash, introduction of chrysarobin for treatment of psori
• PMID 2656323

• [Eczema marginatum: focus of infection in a family (author's transl)].

• Grigoriu A, Grigoriu D.
• Mykosen.Mykosen.1979 Mar;22(3):77-81.
• PMID 440329

• [Evaluation of econazol in 594 cases of skin mycosis (author's transl)].

• Schwarz KJ, Much T, Konzelmann M.
• Deutsche medizinische Wochenschrift (1946).Dtsch Med Wochenschr.1975 Jul 11;100(28):1497-500.
• A total of 594 patients were treated with the new antimycotic agent econazol (Pevaryl). The diagnosis was proven microscopically and on culture except in cases of pityriasis versicolor where it was proven microscopically only. Econazol was given to 130 patients as a 1% solution, to 128 patients as a
• PMID 124247

---

★リンクテーブル★

リンク元	「頑癬」
関連記事	「eczema」

「頑癬」

　　[★]

英

marginated eczema

ラ

eczema marginatum

同

輪郭性湿疹様白癬 trichophytia eczematosa marginata

関

股部白癬、Trichophyton rubrum

「eczema」

　　[★]

• n.

• 湿疹
• アトピー性皮膚炎