Ota nevus
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Pot afectar la zona conjuntival.
References
Ota Nevus és un enfosquiment benigne de la pell principalment al voltant de la zona del nervi trigemin, que afecta principalment les regions de l'ull a les quals serveixen la primera i la segona divisions d'aquest nervi. Aquesta condició, també anomenada melanosi dèrmica ocular, provoca una decoloració de color gris-blau a causa dels melanòcits atrapats. Normalment apareix en un costat de la cara i pot afectar l'ull, la pell de la cara i, de vegades, el paladar. Les persones amb aquesta malaltia tenen més probabilitats de desenvolupar melanoma ocular i glaucoma. El nevus d'Ito és similar però afecta diferents àrees nervioses.
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 també es coneix com a punt mongol. És un tipus comú de marca de naixement que es veu en els nounats. Apareix com taques de color gris blau a la pell des del naixement o poc després. Aquestes marques es troben normalment a la part baixa de l'esquena i les natges, i les espatlles són la següent ubicació habitual. Són més freqüents en nadons asiàtics i negres i afecten per igual tant a nens com a nenes. En general, s'esvaeixen soles a l'edat d'1 a 6 anys i, en general, no necessiten cap tractament, ja que en la seva majoria són inofensius.
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'ha informat que l'ús d'un làser Q-switched de 1064 nm té èxit en el tractament del nevus d'Ota.
○ Tractament
#QS-1064 laser