Ota nevus
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Poate afecta zona conjunctivală.
References
Ota Nevus este o întunecare benignă a pielii în principal în jurul zonei nervului trigemen, care afectează mai ales regiunile ochiului deservite de prima și a doua diviziune a acestui nerv. Această afecțiune, numită și melanoză dermică oculară, provoacă o decolorare gri-albastru din cauza melanocitelor prinse. Apare de obicei pe o parte a feței și poate implica ochiul, pielea feței și, uneori, cerul gurii. Persoanele cu această afecțiune au șanse mai mari de a dezvolta melanom ocular și glaucom. Nevusul lui Ito este similar, dar afectează diferite zone nervoase.
Nevus of Ota is a benign melanosis that primarily involves the region of the trigeminal nerve distribution. The first and second divisions of the trigeminal nerve, namely the ophthalmic V1 and the maxillary V2 are most commonly involved. There is associated hyperpigmentation of the eye. Nevus of Ota is also known as ocular dermal melanosis. The characteristic gray-blue hyperpigmentation occurs due to entrapped melanocytes. Unilateral presentation is more common. The melanocytes are entrapped leading to gray-blue hyperpigmentation of the conjunctiva and sclera along with ipsilateral facial skin. There is an increased risk of uveal melanoma and glaucoma in these cases. Palatal involvement may also occur. Nevus of Ito is very similar to nevus of Ota except it differs in the territory of distribution. It was described by Minor Ota in 1954. It involves the distribution territory of lateral cutaneous brachial nerves of the shoulder and posterior supraclavicular nerves. Both of these diseases share similar pathophysiology.
Nevus of Ota is a benign melanosis that primarily involves the region of the trigeminal nerve distribution. The first and second divisions of the trigeminal nerve, namely the ophthalmic V1 and the maxillary V2 are most commonly involved. There is associated hyperpigmentation of the eye. Nevus of Ota is also known as ocular dermal melanosis. The characteristic gray-blue hyperpigmentation occurs due to entrapped melanocytes. Unilateral presentation is more common. The melanocytes are entrapped leading to gray-blue hyperpigmentation of the conjunctiva and sclera along with ipsilateral facial skin. There is an increased risk of uveal melanoma and glaucoma in these cases. Palatal involvement may also occur. Nevus of Ito is very similar to nevus of Ota except it differs in the territory of distribution. It was described by Minor Ota in 1954. It involves the distribution territory of lateral cutaneous brachial nerves of the shoulder and posterior supraclavicular nerves. Both of these diseases share similar pathophysiology.
Congenital dermal melanocytosis este cunoscut și sub numele de spot mongol. Este un tip comun de semn de naștere observat la nou-născuți. Apare ca pete gri-albastre pe piele de la nastere sau la scurt timp dupa. Aceste semne se găsesc de obicei pe partea inferioară a spatelui și pe fese, umerii fiind următoarea locație comună. Sunt mai frecvente la sugarii asiatici și negri, afectând atât băieții cât și fetele în mod egal. De obicei, acestea dispar de la sine până la vârsta de 1 până la 6 ani și, în general, nu au nevoie de niciun tratament, deoarece sunt în mare parte inofensive.
Congenital dermal melanocytosis, also known as Mongolian spot or slate gray nevus, is one of many frequently encountered newborn pigmented lesions. It is a type of dermal melanocytosis, which presents as gray-blue areas of discoloration from birth or shortly thereafter. Congenital dermal melanocytosis is most commonly located in the lumbar and sacral-gluteal region, followed by shoulders in frequency. They most commonly occur in Asian and Black patients, affect both genders equally, and commonly fade by age 1 to 6 years old. Congenital dermal melanocytoses are usually benign and do not require treatment.
Congenital dermal melanocytosis, also known as Mongolian spot or slate gray nevus, is one of many frequently encountered newborn pigmented lesions. It is a type of dermal melanocytosis, which presents as gray-blue areas of discoloration from birth or shortly thereafter. Congenital dermal melanocytosis is most commonly located in the lumbar and sacral-gluteal region, followed by shoulders in frequency. They most commonly occur in Asian and Black patients, affect both genders equally, and commonly fade by age 1 to 6 years old. Congenital dermal melanocytoses are usually benign and do not require treatment.
S-a raportat că utilizarea unui laser de 1064 nm cu comutare Q a avut succes în tratarea nevului Ota.
○ Tratament
#QS-1064 laser