Granuloma annulare Classification & external resources
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Granuloma annulare on hand
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ICD-10
| L92.0
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DiseasesDB
| 5414
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eMedicine
| derm/169
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MeSH
| D016460
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Granuloma annulare is a chronic skin disease consisting of a rash with reddish bumps arranged in a circle or ring. It most often affects children, young and older adults and it is slightly more common in females (60/40 ratio). The condition is usually seen in otherwise healthy people. Occasionally, it may be associated with diabetes or thyroid disease. Its cause is unknown.
Additional recommended knowledge
Presentation
Granuloma annulare is usually asymptomatic, but the rash may burn and be itchy. Patients usually notice a ring of small, firm bumps (papules) over the backs of the forearms, hands or feet, often centered around joints or knuckles. The bumps are caused by the clustering of T cells below the skin. Occasionally, multiple rings may be found. Rarely, granuloma annulare may appear as a firm nodule under the skin of the arms or legs.
Prognosis
Because granuloma annulare is usually asymptomatic, treatment may not be necessary except for cosmetic reasons. Most lesions of granuloma annulare disappear in pre-puberity patients with no treatment within two years while older patients (50+) have rings for upwards of 20 years. The appearance of new rings years later is not uncommon.
See also
Diseases of the skin and subcutaneous tissue (integumentary system) (L, 680-709) |
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Infections | Staphylococcus (Staphylococcal scalded skin syndrome, Impetigo, Boil, Carbuncle) - Cellulitis (Paronychia) - Acute lymphadenitis - Pilonidal cyst - Corynebacterium (Erythrasma) |
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Bullous disorders | Pemphigus - Pemphigoid (Bullous pemphigoid) - Dermatitis herpetiformis |
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Dermatitis and eczema | Atopic dermatitis - Seborrhoeic dermatitis (Dandruff, Cradle cap) - Diaper rash - Urushiol-induced contact dermatitis - Contact dermatitis - Erythroderma - Lichen simplex chronicus - Prurigo nodularis - Itch - Pruritus ani - Nummular dermatitis - Dyshidrosis - Pityriasis alba |
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Papulosquamous disorders | Psoriasis (Psoriatic arthritis) - Parapsoriasis (Pityriasis lichenoides et varioliformis acuta, Pityriasis lichenoides chronica) - Pityriasis rosea - Lichen planus - Pityriasis rubra pilaris - Lichen nitidus |
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Urticaria and erythema | Urticaria (Dermatographic urticaria, Cholinergic urticaria) - Erythema (Erythema multiforme, Stevens-Johnson syndrome, Toxic epidermal necrolysis, Erythema nodosum, Erythema annulare centrifugum, Erythema marginatum) |
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Radiation-related disorders | Sunburn - Actinic keratosis - Polymorphous light eruption - Radiodermatitis - Erythema ab igne |
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Disorders of skin appendages | nail disease: Ingrown nail - Onychogryposis - Beau's lines - Yellow nail syndrome
hair loss: Alopecia areata (Alopecia totalis, Alopecia universalis, Ophiasis) - Androgenic alopecia - Telogen effluvium - Traction alopecia - Lichen planopilaris - Trichorrhexis nodosa
other follicular disorders: Hypertrichosis (Hirsutism) - Acne vulgaris - Rosacea (Perioral dermatitis, Rhinophyma) - follicular cysts (Epidermoid cyst, Sebaceous cyst, Steatocystoma multiplex) - Pseudofolliculitis barbae - Hidradenitis suppurativa
sweat disorders: eccrine (Miliaria, Anhidrosis) - apocrine (Body odor, Chromhidrosis, Fox-Fordyce disease) |
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Other | pigmentation (Vitiligo, Melasma, Freckle, Café au lait spot, Lentigo/Liver spot) - Seborrheic keratosis - Acanthosis nigricans - Callus - Pyoderma gangrenosum - Bedsore - Keloid - Granuloma annulare - Necrobiosis lipoidica - Granuloma faciale - Lupus erythematosus - Morphea - Calcinosis cutis - Sclerodactyly - Ainhum - Livedoid vasculitis |
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see also congenital (Q80-Q84, 757) |
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