No abstract available.
Nevus of Ota* ; Nevus* ; Recurrence* ; Stem Cells*

No abstract available.
Nevus of Ota* ; Nevus* ; Recurrence* ; Stem Cells*

The nevus of Ota is a benign nevus characterized by the deposition of pigment in an area of distribution of the first and second branches of the trigeminal nerve. In general it rarely causes ophthalmological problems. We experienced a 23-year-old male patient who complained sudden visual loss in the left eye with the characteristics of the nevus of Ota. On examination we found the altitudinal field defect which we believe is an unusual finding of the nevus of Ota.
Humans ; Male ; Nevus ; Nevus of Ota* ; Trigeminal Nerve ; Young Adult

Benign pigmented lesions derived from dermal melanocytes include the Mongolian spot, the nevi of Ota and Ito, and the blue nevus. The nevus of Ito differs from the nevus of Ota by its location in the supraclavicular, scapular and deltoid regions. It occurs rarely in association with bilateral nevus of Ota. We present a 70 years old male, showing extensive involvement of dermal melanocytic nevi, so called bilateral nevus of Ota associated with bilateral nevus of Ito.
Aged ; Humans ; Male ; Melanocytes ; Mongolian Spot ; Nevus of Ota* ; Nevus* ; Nevus, Blue ; Nevus, Pigmented

BACKGROUND: Until recently, the removal of melanocytic nevi has been performed with a CO2 laser or Er:YAG laser. These lasers have been useful for removing affected spots. However, enlargement of spots or some sequelae, including depressed or hypertrophic scars, could develop as unwanted results. The Q-switched Nd:YAG laser has been used to remove deep-seated melanocytes, such as Ota nevus or tattoos. However, there have been no previous experiments performed to test the efficacy and safety of this laser treatment for melanocytic nevi. OBJECTIVE: The objective of this study was to investigate the efficacy and safety of the 1,064 nm Q-switched Nd:YAG laser for removing melanocytic nevi, including congenital nevomelanocytic and acquired nevomelanocytic nevi. METHODS: Two thousand and sixty four Korean patients with small melanocytic nevi were treated with a Q-switched Nd:YAG laser from 2005 to 2009. High-resolution photographs were taken in identical lighting and positions before and after the six weeks of treatment to observe the procedural efficacy. RESULTS: About 70% of the nevi treated using a 1,064 nm Q-switched Nd:YAG laser were completely removed after one session. The other 30% were completely treated within three sessions. The appearance of sequelae such as hollow scars noticeably decreased compared to the results seen in CO2 or Er:YAG laser treatments. CONCLUSION: Use of the 1,064 nm Q-switched Nd:YAG laser is a safe and effective treatment modality for melanocytic nevi.
Cicatrix ; Cicatrix, Hypertrophic ; Humans ; Lasers, Gas ; Light ; Lighting ; Melanocytes ; Nevus ; Nevus of Ota ; Nevus, Pigmented

Dermal melanocytosis includes Mongolian spot, nevi of Ota and Ito, dermal melanocytic harnartoma, and blue nevus. Nevi of Ota may be respectively associated with Mongolian spot, blue nevi and unilateral or bilateral nevi of Ito. We present a case, a 24 year-old female, who had bilaterally brownish or slatebluish pigmented patches on the face, sclera, neck, anterior chest, deltoid, supraclavicular, scapular, back and sacrococcygeal area. And also she had a bluish, bean-sized nodule on her left mid-back. It is likely that this case may be considered as an extremely extensive case of pig:m.entary anomaly, associating aberrant and persistent mongolian spots, extensive nevus of Ito, bilateral nevus of Ota and blue nevus. To our knowledges it seems that such case has not previously been reported in Korean literature.
Female ; Humans ; Mongolian Spot ; Neck ; Nevus ; Nevus of Ota ; Nevus, Blue ; Sclera ; Thorax ; Young Adult

Dermal melanocytosis is characterized by the presence of ectopic melanocytes in the dermis. The most common forms include the Mongolian spot, blue nevus, nevus of Ota, and nevus of Ito. Some types of dermal melanocytosis do not fit into any of these morphologic categories, however. Our case demonstrated an extensive amount of uniform deep blue patches of nevi with unilateral distribution on the left face, neck, chest, shoulder, and back. On histopathologic examination, a number of elongated melanocytes scattered throughout the dermis were found. We herein report a case of congenital unilateral dermal melanocytosis.
Dermis ; Melanocytes ; Mongolian Spot ; Neck ; Nevus ; Nevus of Ota ; Nevus, Blue ; Shoulder ; Thorax

The nevua of Ota is a congenital pigmentary disorder of the skin and mucaus membrane, partieularly in the periorbital region, the temple, the forehead, the malar area and the nose. The nevus of Ita differs from the nevus of Ota in its distribution in the supraclavicular, scapular, and deltoid regions. It may occur alone or in association with ipsilateral or rarely with bilateral nevus of Ota. We present a 22 year-old female who has had pigmentary anomalies on the both malar areas and left sclera associated with pigmentation of the right shoulder.
Female ; Forehead ; Humans ; Membranes ; Nevus of Ota* ; Nevus* ; Nose ; Pigmentation ; Sclera ; Shoulder ; Skin ; Young Adult

Ota's nevus is mongolian spot-like macular blue-black or gray-brown patchy pigmentation that most commonly ocurrs in areas innervated by the first and second division of the trigeminal nerve. Acquired, bilateral nevus of Ota-like macules (ABNOM) is located bilaterally on the face, appears later in life, is blue-brown or slate-gray in color. It is not accompanied by macules on the ocular and mucosal membranes. There is also debate as to whether ABNOM is part of the Ota's nevus spectrum. We report an interesting case of ABNOM associated with Ota's nevus. A 36-yr-old Korean women visited our clinic with dark bluish patch on the right cheek and right conjunctiva since birth. She also had mottled brownish macules on both forehead and both lower eyelids that have developed 3 yr ago. Skin biopsy specimens taken from the right cheek and left forehead all showed scattered, bipolar or irregular melanocytes in the dermis. We diagnosed lesion on the right cheek area as Ota's nevus and those on both forehead and both lower eyelids as ABNOM by clinical and histologic findings. This case may support the view that ABNOM is a separate entity from bilateral Ota's nevus.
Adult ; Biopsy ; Face/pathology ; Female ; Humans ; Melanocytes/cytology ; Nevus of Ota/diagnosis/*pathology ; Nevus, Pigmented/diagnosis/*pathology

PURPOSE: To report a case of cosmetically successful treatment of nevus of Ota performed by scleral painting and scleral allograft transplantation. METHODS: Scleral painting and allograft transplantation were done in a 28-year-old woman who had cosmetic problem due to nevus of Ota, and she was followed up for 5 months postoperatively. RESULTS: The patient had no specific postoperative complication and was satisfied with the surgical results. CONCLUSIONS: For patients of nevus of Ota who have not been treated successfully, scleral painting and allograft transplation can be an effective cosmetic treatment.
Adult ; Allografts ; Female ; Humans ; Nevus of Ota* ; Nevus* ; Paint ; Paintings ; Postoperative Complications