eMedicine Specialties > Dermatology > Benign Neoplasms
Nevi of Ota and Ito: Follow-up
Updated: Jul 14, 2008
Follow-up
Further Outpatient Care
- No special dermatology outpatient follow-up care is required; however, an ophthalmologist should examine patients with nevus of Ota periodically for the development of glaucoma.
Complications
- Skin biopsies are warranted if clinical changes are suspected of malignant transformation (eg, ulceration, new papular lesions, variegations in color) within the involved skin, ocular, or mucosal tissues.
- Ophthalmologic follow-up care is necessary for patients with increased intraocular pressure.
Prognosis
- Without treatment, the skin lesions are permanent.
- The development of glaucoma in patients with nevus of Ota can be as high as 10%.
- Malignant degeneration has been described rarely in white patients with both nevus of Ota and nevus of Ito.
Patient Education
- Make patients aware of the risk associated with the development of glaucoma. Instruct patients to schedule periodic follow-up visits with an ophthalmologist.
- Instruct patients to report any unusual symptoms or changes to the lesional areas to a physician, since a small risk for malignant degeneration exists.
Miscellaneous
Medicolegal Pitfalls
- Failure to recognize the potential for malignant degradation of nevi of Ota and Ito, especially in white patients, may result in medicolegal complications.
More on Nevi of Ota and Ito |
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| Differential Diagnoses & Workup: Nevi of Ota and Ito |
| Treatment & Medication: Nevi of Ota and Ito |
Follow-up: Nevi of Ota and Ito |
| References |
| « Previous Page |
References
Ito M. Studies on melanin XXII. Nevus fuscocaeruleus acromio-deltoideus. Tohoko J Exper Med. 1954;60:10.
Patel BC, Egan CA, Lucius RW, Gerwels JW, Mamalis N, Anderson RL. Cutaneous malignant melanoma and oculodermal melanocytosis (nevus of Ota): report of a case and review of the literature. J Am Acad Dermatol. May 1998;38(5 Pt 2):862-5. [Medline].
van Krieken JH, Boom BW, Scheffer E. Malignant transformation in a naevus of Ito. A case report. Histopathology. Jan 1988;12(1):100-2. [Medline].
Teekhasaenee C, Ritch R, Rutnin U, Leelawongs N. Glaucoma in oculodermal melanocytosis. Ophthalmology. May 1990;97(5):562-70. [Medline].
Hirayama T, Suzuki T. A new classification of Ota's nevus based on histopathological features. Dermatologica. 1991;183(3):169-72. [Medline].
Anderson RR. Lasers in dermatology--a critical update. J Dermatol. Nov 2000;27(11):700-5. [Medline].
Watanabe S, Takahashi H. Treatment of nevus of Ota with the Q-switched ruby laser. N Engl J Med. Dec 29 1994;331(26):1745-50. [Medline].
Chan HH, Leung RS, Ying SY, Lai CF, Kono T, Chua JK, et al. A retrospective analysis of complications in the treatment of nevus of Ota with the Q-switched alexandrite and Q-switched Nd:YAG lasers. Dermatol Surg. Nov 2000;26(11):1000-6. [Medline].
Wang HW, Liu YH, Zhang GK, Jin HZ, Zuo YG, Jiang GT, et al. Analysis of 602 Chinese cases of nevus of Ota and the treatment results treated by Q-switched alexandrite laser. Dermatol Surg. Apr 2007;33(4):455-60. [Medline].
Hosaka Y, Onizuka T, Ichinose M, Yoshimoto S, Okubo F, Hori S, et al. Treatment of nevus Ota by liquid nitrogen cryotherapy. Plast Reconstr Surg. Apr 1995;95(4):703-11. [Medline].
Hidano A, Kajima H, Ikeda S, Mizutani H, Miyasato H, Niimura M. Natural history of nevus of Ota. Arch Dermatol. Feb 1967;95(2):187-95. [Medline].
Further Reading
Keywords
hamartoma, nevus of Ota, nevus of Ito, Hori nevus, Hori's nevus, nevus fuscoceruleus zygomaticus, plaque-type variant of blue nevus, nevus fuscoceruleus acromiodeltoideus
Follow-up: Nevi of Ota and Ito