Ota nevus - بقعة منغولية
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References
Ota Nevus هو اسمرار حميد للجلد حول منطقة العصب ثلاثي التوائم، ويؤثر في الغالب على مناطق العين التي يخدمها القسمان الأول والثاني من هذا العصب. تسبب هذه الحالة، والتي تسمى أيضًا التصبغ الجلدي العيني، تغيرًا في اللون الرمادي إلى الأزرق بسبب الخلايا الصباغية المحاصرة. ويظهر عادةً على جانب واحد من الوجه وقد يصيب العين وجلد الوجه وأحيانًا سقف الفم. الأشخاص الذين يعانون من هذه الحالة لديهم فرصة أكبر للإصابة بسرطان الجلد والجلوكوما. وحمة إيتو متشابهة ولكنها تؤثر على مناطق عصبية مختلفة.
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 تُعرف أيضًا باسم البقعة المنغولية. وهو نوع شائع من الوحمات التي تظهر عند الأطفال حديثي الولادة. تظهر على شكل بقع رمادية زرقاء على الجلد منذ الولادة أو بعد فترة قصيرة. توجد هذه العلامات عادة في أسفل الظهر والأرداف، مع كون الكتفين هي الموقع الشائع التالي. وهي أكثر شيوعا عند الرضع الآسيويين والسود، وتؤثر على الأولاد والبنات على حد سواء. عادةً ما تتلاشى من تلقاء نفسها عند عمر سنة إلى 6 سنوات ولا تحتاج عمومًا إلى أي علاج لأنها في الغالب غير ضارة.
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.
تم الإبلاغ عن نجاح استخدام ليزر Q-switched 1064 نانومتر في علاج وحمة أوتا.
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#QS-1064 laser