- Vogt-Koyanagi-Harada syndrome
Infobox_Disease
Name = PAGENAME
Caption =
DiseasesDB = 13983
ICD10 = ICD10|H|20|8|h|15
ICD9 = ICD9|364.24
ICDO =
OMIM =
MedlinePlus =
eMedicineSubj = derm
eMedicineTopic = 739
MeshID = D014607Vogt-Koyanagi-Harada syndrome (VKH syndrome) is a condition seen in humans and
dog s involving various melanocyte-containing organs, characterized byuveitis (inflammation of the inside of theeye ),poliosis (whitening of hair),vitiligo (loss ofpigment in the skin), andmeningitis , although dogs with this syndrome rarely develop meningitis. It is also known as uveodermatologic syndrome.Pathophysiology
VKH syndrome is an immune-mediated disease. The mechanism of the disease is thought to be
T helper cell mediated autoimmune attack ofmelanocyte s in the skin anduvea of dogs and humans, and in thecentral nervous system andinner ear of humans. [cite journal |author=Sigle K, McLellan G, Haynes J, Myers R, Betts D |title=Unilateral uveitis in a dog with uveodermatologic syndrome |journal=J Am Vet Med Assoc |volume=228 |issue=4 |pages=543–8 |year=2006 |pmid=16478427 |doi=10.2460/javma.228.4.543]In humans there is a higher rate of VKH syndrome in people of Asian, Latin, and Mediterranean descent.cite book|author=Gelatt, Kirk N. (ed.)|title=Veterinary Ophthalmology|edition=3rd ed.|publisher=Lippincott, Williams & Wilkins|year=1999|id=ISBN 0-683-30076-8]
VKH syndrome in dogs
In dogs VKH syndrome (often called VKH-like syndrome) most commonly affects young animals and is seen most commonly in the
Akita Inu , but also in theSiberian Husky and Samoyed. Uveitis usually occurs first and is often severe enough to cause blindness. VKH syndrome can also causeretinal detachment ,cataract s, andglaucoma . Pigment partly disappears from theretinal pigment epithelium and iris. Skin lesions include loss of pigment and hair on the eyelids, nose, and lips. Symptoms andbiopsy will confirm the diagnosis. Treatment is withimmunosuppressive drug s such asprednisone andazathioprine . Theprognosis is guarded.Eponym
It is named for
Alfred Vogt ,Yoshizo Koyanagi , andEinosuke Harada . [WhoNamedIt|synd|1072] [A Vogt. Frühzeitiges Ergrauen der Zilien und Bemerkungen über den sogenannten plötzlichen Eintritt dieser Veränderung. Klinische Monatsblätter für Augenheilkunde, Stuttgart, 1906, 44: 228-242.] [Y. Koyanagi. Dysakusis, Alopecie und Poliosis bei schwerer Uveitis nicht traumatischen Ursprungs. Klinische Monatsblätter für Augenheilkunde, Stuttgart, 1929, 82: 194-211.] [E. Harada. Clinical study of nonsuppurative choroiditis. A report of acute diffuse choroiditis. Acta Societatis ophthalmologicae Japonicae, 1926, 30: 356.]References
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