What is Dermal Melanocytosis? AKA Hori's Naevus | Dr Davin Lim скачать в хорошем качестве

What is Dermal Melanocytosis? AKA Hori's Naevus | Dr Davin Lim

What is Hori nevus? It is an acquired form of face pigmentation that is super common in Asian women. Onset is around 20 years of age. It progressively darkens over the decades. Hori is characterized by dusky grey to blue macules (dots) on the cheeks & around the eyes. A fancy name is ABNOM or acquired bilateral nevus of Ota like macules. Both entities are due to pigment cells called melanocytes occupying the dermal layer of skin. Hori is very different from melasma, sunspots, lentigo, freckles & other common forms of pigmentation. What is Hori nevus? Hori Navus This is an acquired form of face pigmentation that is super common in Asian women. Onset is around 20 years of age. It progressively darkens over the decades. Hori is characterized by dusky grey to blue macules (dots) on the cheeks & around the eyes. A fancy name is ABNOM or acquired bilateral nevus of Ota like macules. Both entities are due to pigment cells called melanocytes occupying the dermal layer of skin. Hori is very different from melasma, sunspots, lentigo, freckles & other common forms of pigmentation. How common is it? Hori nevus is one of the most common causes of face pigmentation, especially in Asian women. The clinic sees at least three to six cases a week. Not all patients request treatment. It is not hereditary. Will Hori pigmentation worsen in time if not treated? Yes, however progression is slow. Some patients elect not to treat. Others elect treatment when make-up cannot cover pigment. What are other causes of pigmentation associated with Hori? The majority of Hori patients will also have what dermatologists’ term as non-specific pigment, meaning elements of dusky dermal pigment, spots from sun & age as well as specific pigment disorders like melasma & Ota. It gets much more complex as some may have associated pigment demarcation lines & constitutional periorbital dark circles. My team & I approach all cases with a diagnosis, as this confers prognosis & treatments. Hence in most cases we use nana & pico lasers with 532, 730, 1064 wavelengths with pigment correctors. . . My clinic: @Cutis_dermatology on Instagram Website: www.cutis.com.au Instagram: @drdavinlim @101.skin Intro: (0:00) Brief explanation of Dermal Melanocytosis: (0:20) Hori's Naevus: (0:37) Hori's vs Melasma: (2:03) Treating pigmentation: (3:15) Summary: (7:52)