Hidradenitis

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Hidradenitis
Classification and external resources
MeSH	D016575

Hidradenitis is a term used to describe diseases in which the histologic abnormality is primarily an inflammatory infiltrate around the eccrine glands.^[1]^:780 This group includes neutrophilic eccrine hidradenitis and recurrent palmoplantar hidradenitis.^[1]^:780

It can also be defined more generally as an inflammation of sweat glands.^[2]

The term hidradenitis suppurativa refers to a chronic cutaneous condition characterized by scarring of the apocrine sweat glands.^[3]^:710

[edit] References

^ ^a ^b James, William; Berger, Timothy; Elston, Dirk (2005). Andrews' Diseases of the Skin: Clinical Dermatology. (10th ed.). Saunders. ISBN 0721629210.
^ "hidradenitis" at Dorland's Medical Dictionary
^ Freedberg, et. al. (2003). Fitzpatrick's Dermatology in General Medicine. (6th ed.). McGraw-Hill. ISBN 0071380760.

This Condition of the skin appendages article is a stub. You can help Wikipedia by expanding it.

Disorders of skin appendages (L60–L75, 703–706)

Nail

thickness: Onychogryphosis · Onychauxis

color: Beau's lines · Yellow nail syndrome · Leukonychia · Azure Lunula

shape: Koilonychia · Nail clubbing

behavior: Onychotillomania · Onychophagia

other: Ingrown nail · Anonychia

ungrouped: Paronychia (Acute paronychia, Chronic paronychia ) · Chevron nail · Congenital onychodysplasia of the index fingers · Green nails · Half and half nails · Hangnail · Hapalonychia · Hook nail · Lichen planus of the nails · Longitudinal erythronychia · Malalignment of the nail plate · Median nail dystrophy · Mees' lines · Melanonychia · Muehrcke's lines · Nail–patella syndrome · Onychoatrophy · Onychocryptosis · Onycholysis · Onychomadesis · Onychomatricoma · Onychomycosis · Onychophosis · Onychoptosis defluvium · Onychorrhexis · Onychoschizia · Platonychia · Pincer nails · Plummer's nail · Psoriatic nails · Pterygium inversum unguis · Pterygium unguis · Purpura of the nail bed · Racquet nail · Red lunulae · Shell nail syndrome · Splinter hemorrhage · Spotted lunulae · Staining of the nail plate · Stippled nails · Subungual hematoma · Terry's nails · Twenty-nail dystrophy

Hair

Hair loss/
Baldness

noncicatricial alopecia: Alopecia/Alopecia areata (Alopecia totalis, Alopecia universalis, Ophiasis)
Androgenic alopecia (male-pattern baldness) · Hypotrichosis · Telogen effluvium · Traction alopecia · Lichen planopilaris · Trichorrhexis nodosa · Alopecia neoplastica · Anagen effluvium · Alopecia mucinosa

cicatricial alopecia: Pseudopelade of Brocq · Central centrifugal cicatricial alopecia · Pressure alopecia · Traumatic alopecia · Tumor alopecia · Hot comb alopecia · Perifolliculitis capitis abscedens et suffodiens · Graham-Little syndrome · Folliculitis decalvans

ungrouped: Triangular alopecia · Frontal fibrosing alopecia · Marie Unna hereditary hypotrichosis

Hypertrichosis

Hirsutism · Acquired generalized hypertrichosis · Generalized congenital hypertrichosis · Localized acquired hypertrichosis · Localized congenital hypertrichosis · Patterned acquired hypertrichosis · Prepubertal hypertrichosis · X-linked hypertrichosis

Acneiform eruption

Acne	Acne vulgaris · Acne conglobata · Acne miliaris necrotica · Tropical acne · Infantile acne/Neonatal acne · Excoriated acne · Acne fulminans · Acne medicamentosa (e.g., steroid acne) · Halogen acne (Iododerma, Bromoderma, Chloracne) · Oil acne · Tar acne · Acne cosmetica · Occupational acne · Acne aestivalis · Acne keloidalis nuchae · Acne mechanica · Acne with facial edema · Pomade acne · Acne necrotica · Blackhead · Lupus miliaris disseminatus faciei

Rosacea	Perioral dermatitis (Granulomatous perioral dermatitis) · Phymatous rosacea (Rhinophyma, Blepharophyma, Gnathophyma, Metophyma, Otophyma) · Papulopustular rosacea · Lupoid rosacea · Erythrotelangiectatic rosacea · Glandular rosacea · Gram-negative rosacea · Steroid rosacea · Ocular rosacea · Persistent edema of rosacea · Rosacea conglobata · variants (Periorificial dermatitis, Pyoderma faciale)

Ungrouped	Granulomatous facial dermatitis · Idiopathic facial aseptic granuloma · Periorbital dermatitis · SAPHO syndrome

Follicular cysts

Epidermoid cyst · Trichilemmal cyst · Sebaceous cyst · Steatocystoma multiplex · Milia

Inflammation

Folliculitis (Folliculitis nares perforans, Tufted folliculitis) · Pseudofolliculitis barbae
Hidradenitis (Hidradenitis suppurativa, Recurrent palmoplantar hidradenitis, Neutrophilic eccrine hidradenitis)

Ungrouped

Acrokeratosis paraneoplastica of Bazex · Acroosteolysis · Bubble hair deformity · Disseminate and recurrent infundibulofolliculitis · Erosive pustular dermatitis of the scalp · Erythromelanosis follicularis faciei et colli · Hair casts · Hair follicle nevus · Intermittent hair–follicle dystrophy · Keratosis pilaris atropicans · Kinking hair · Koenen's tumor · Lichen planopilaris · Lichen spinulosus · Loose anagen syndrome · Menkes kinky hair syndrome · Monilethrix · Parakeratosis pustulosa · Pili (Pili annulati · Pili bifurcati · Pili multigemini · Pili pseudoannulati · Pili torti) · Pityriasis amiantacea · Plica neuropathica · Poliosis · Rubinstein–Taybi syndrome · Setleis syndrome · Traumatic anserine folliculosis · Trichomegaly · Trichomycosis axillaris · Trichorrhexis (Trichorrhexis invaginata · Trichorrhexis nodosa) · Trichostasis spinulosa · Uncombable hair syndrome · Wooly hair · Wooly hair nevus

Sweat glands

Eccrine	Miliaria (Colloid milium • Miliaria crystalline • Miliaria profunda • Miliaria pustulosa • Miliaria rubra • Occlusion miliaria • Postmiliarial hypohidrosis), Granulosis rubra nasi, Ross’ syndrome, Anhidrosis, Hyperhidrosis (Generalized, Gustatory, Palmoplantar)

Apocrine	Body odor, Chromhidrosis, Fox–Fordyce disease

Sebaceous	Sebaceous hyperplasia

M: SKA

anat/phys/devp

noco/cong/tumr, sysi/epon

proc, drug(D10)

Inflammation

Acute

Plasma derived mediators	Bradykinin · complement (C3, C5a, MAC) · coagulation (Factor XII, Plasmin, Thrombin)

Cell derived mediators	preformed: Lysosome granules · vasoactive amines (Histamine, Serotonin) synthesized on demand: cytokines (IFN-γ, IL-8, TNF-α, IL-1) · eicosanoids (Leukotriene B4, Prostaglandins) · Nitric oxide · Kinins

Chronic

Macrophage · Epithelioid cell · Giant cell · Granuloma

Processes

Traditional: Rubor · Calor · Tumor · Dolor (pain) · Functio laesa
Modern: Acute-phase reaction/Fever · Vasodilation · Increased vascular permeability · Exudate · Leukocyte extravasation · Chemotaxis

Specific locations

Nervous	CNS (Encephalitis, Myelitis) · Meningitis (Arachnoiditis) · PNS (Neuritis) · eye (Dacryoadenitis, Scleritis, Keratitis, Choroiditis, Retinitis, Chorioretinitis, Blepharitis, Conjunctivitis, Iritis, Uveitis) · ear (Otitis, Labyrinthitis, Mastoiditis)

Cardiovascular	Carditis (Endocarditis, Myocarditis, Pericarditis) · Vasculitis (Arteritis, Phlebitis, Capillaritis)

Respiratory	upper (Sinusitis, Rhinitis, Pharyngitis, Laryngitis) · lower (Tracheitis, Bronchitis, Bronchiolitis, Pneumonitis, Pleuritis) · Mediastinitis

Digestive	mouth (Stomatitis, Gingivitis, Gingivostomatitis, Glossitis, Tonsillitis, Sialadenitis/Parotitis, Cheilitis, Pulpitis, Gnathitis) · tract (Esophagitis, Gastritis, Gastroenteritis, Enteritis, Colitis, Enterocolitis, Duodenitis, Ileitis, Caecitis, Appendicitis, Proctitis) · accessory (Hepatitis, Cholangitis, Cholecystitis, Pancreatitis) · Peritonitis

Integumentary	Dermatitis (Folliculitis) · Cellulitis · Hidradenitis

Musculoskeletal	Arthritis · Dermatomyositis · soft tissue (Myositis, Synovitis/Tenosynovitis, Bursitis, Enthesitis, Fasciitis, Capsulitis, Epicondylitis, Tendinitis, Panniculitis) Osteochondritis: Osteitis (Spondylitis, Periostitis) · Chondritis

Urinary	Nephritis (Glomerulonephritis, Pyelonephritis) · Ureteritis · Cystitis · Urethritis

Reproductive	female: Oophoritis · Salpingitis · Endometritis · Parametritis · Cervicitis · Vaginitis · Vulvitis · Mastitis male: Orchitis · Epididymitis · Prostatitis · Balanitis · Balanoposthitis pregnancy/newborn: Chorioamnionitis · Omphalitis

Endocrine	Insulitis · Hypophysitis · Thyroiditis · Parathyroiditis · Adrenalitis

Lymphatic	Lymphangitis · Lymphadenitis

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Hidradenitis

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