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Adetunji MO, McGeehan B, Lee V, Maguire MG, Briceño CA. Primary orbital melanoma: A report of a case and comprehensive review of the literature. Orbit 2021; 40:461-469. [PMID: 32900269 PMCID: PMC7940462 DOI: 10.1080/01676830.2020.1818265] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2020] [Accepted: 08/27/2020] [Indexed: 12/13/2022]
Abstract
Purpose: To review the clinical features and treatment-associated outcomes of primary orbital melanoma among cases reported in the literature and to present a case treated with orbital exenteration and post-operative radiotherapy.Methods: Case reports and case series on primary orbital melanoma published in the literature between 1980 and 2020 were reviewed. Data collected included patient demographics, presenting ocular symptoms, diagnostic imaging, histology, management, and outcomes.Results: Eighty-eight cases of primary orbital melanoma were reviewed. The average age at presentation was 45 years and 58% of patients were male. The most common presenting symptoms and signs were proptosis (73%), decreased visual acuity (32%), pain (14%), diplopia (15%), and palpable mass (9%). Imaging frequently showed a well-circumscribed enhancing lesion. Diagnosis was made by histology in all cases, and orbital blue nevus was identified in 42%. In the majority of cases, treatment consisted of orbital exenteration (54%) or excision (38%). Adjuvant radiotherapy was given in 47% of cases. For the 72 patients with reported outcomes, 36% had metastases, 15% had local recurrence, and 32% died of metastatic disease. Patients who received surgery and radiotherapy had improved survival compared to those who received surgery alone (p = .01). There was no difference in survival between those who underwent orbital exenteration or excision (p = .16).Conclusions: Primary orbital melanoma is a rare malignancy and should be considered in patients with a history of unilateral proptosis and a well-defined orbital mass on imaging. Surgery remains the mainstay of treatment. Adjuvant radiotherapy may improve patient survival.
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Affiliation(s)
- Modupe O Adetunji
- Department of Ophthalmology, Perelman School of Medicine, University of Pennsylvania, Philadelphia, Pennsylvania, USA
| | - Brendan McGeehan
- Department of Ophthalmology, Perelman School of Medicine, University of Pennsylvania, Philadelphia, Pennsylvania, USA
| | - Vivian Lee
- Department of Ophthalmology, Perelman School of Medicine, University of Pennsylvania, Philadelphia, Pennsylvania, USA
| | - Maureen G Maguire
- Department of Ophthalmology, Perelman School of Medicine, University of Pennsylvania, Philadelphia, Pennsylvania, USA
| | - César A Briceño
- Department of Ophthalmology, Perelman School of Medicine, University of Pennsylvania, Philadelphia, Pennsylvania, USA
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2
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Brouwer NJ, Verdijk RM, Heegaard S, Marinkovic M, Esmaeli B, Jager MJ. Conjunctival melanoma: New insights in tumour genetics and immunology, leading to new therapeutic options. Prog Retin Eye Res 2021; 86:100971. [PMID: 34015548 DOI: 10.1016/j.preteyeres.2021.100971] [Citation(s) in RCA: 25] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/21/2020] [Revised: 04/18/2021] [Accepted: 04/19/2021] [Indexed: 12/14/2022]
Abstract
Recent developments in oncology have led to a better molecular and cellular understanding of cancer, and the introduction of novel therapies. Conjunctival melanoma (CoM) is a rare but potentially devastating disease. A better understanding of CoM, leading to the development of novel therapies, is urgently needed. CoM is characterized by mutations that have also been identified in cutaneous melanoma, e.g. in BRAF, NRAS and TERT. These mutations are distinct from the mutations found in uveal melanoma (UM), affecting genes such as GNAQ, GNA11, and BAP1. Targeted therapies that are successful in cutaneous melanoma may therefore be useful in CoM. A recent breakthrough in the treatment of patients with metastatic cutaneous melanoma was the development of immunotherapy. While immunotherapy is currently sparsely effective in intraocular tumours such as UM, the similarities between CoM and cutaneous melanoma (including in their immunological tumour micro environment) provide hope for the application of immunotherapy in CoM, and preliminary clinical data are indeed emerging to support this use. This review aims to provide a comprehensive overview of the current knowledge regarding CoM, with a focus on the genetic and immunologic understanding. We elaborate on the distinct position of CoM in contrast to other types of melanoma, and explain how new insights in the pathophysiology of this disease guide the development of new, personalized, treatments.
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Affiliation(s)
- Niels J Brouwer
- Department of Ophthalmology, Leiden University Medical Center, Leiden, the Netherlands.
| | - Robert M Verdijk
- Department of Ophthalmology, Leiden University Medical Center, Leiden, the Netherlands; Department of Pathology, Leiden University Medica Center, Leiden, the Netherlands; Department of Pathology, Erasmus University Medical Center, Rotterdam, the Netherlands.
| | - Steffen Heegaard
- Department of Ophthalmology, Rigshospitalet, University of Copenhagen, Copenhagen, Denmark; Department of Pathology, Eye Pathology Section, Rigshospitalet, University of Copenhagen, Copenhagen, Denmark.
| | - Marina Marinkovic
- Department of Ophthalmology, Leiden University Medical Center, Leiden, the Netherlands.
| | - Bita Esmaeli
- Department of Plastic Surgery, Orbital Oncology and Ophthalmic Plastic Surgery, M.D. Anderson Cancer Center, Houston, TX, USA.
| | - Martine J Jager
- Department of Ophthalmology, Leiden University Medical Center, Leiden, the Netherlands.
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3
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Loh TY, Wu DC. Novel Application of the 730 and 785 nm Picosecond Titanium Sapphire Lasers for the Treatment of Nevus of Ota. Lasers Surg Med 2021; 53:1141-1145. [PMID: 33764565 DOI: 10.1002/lsm.23396] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2020] [Revised: 01/13/2021] [Accepted: 02/12/2021] [Indexed: 11/11/2022]
Abstract
BACKGROUND AND OBJECTIVES Nevus of Ota is a benign dermal melanocytosis that may pose significant psychosocial distress to patients. Q-switched nanosecond lasers have traditionally been considered the first-line treatment but pain, bleeding, and postinflammatory pigmentary alteration are common adverse effects. Picosecond devices have been increasingly used to treat nevus of Ota with promising results. We present two cases demonstrating novel applications of the 730 and 785 nm picosecond titanium sapphire lasers for the treatment of nevus of Ota in two patients with types III and IV skin. STUDY DESIGN/MATERIALS AND METHODS A 730 and 785 nm picosecond titanium sapphire laser with pulse durations of 250 and 300 picoseconds, respectively, were used to treat two cases of nevus of Ota. Four to seven treatment sessions were conducted at monthly intervals, and follow-up evaluation was performed 1-3 months following the final treatment session. RESULTS Both cases demonstrated greater than 75% clearance following treatment. There were no adverse events or pigmentary alteration noted as a result of picosecond titanium sapphire laser treatment. CONCLUSIONS The 730 and 785 nm picosecond titanium sapphire lasers are safe and effective for the treatment of nevus of Ota. Lasers Surg. Med. 00:00-00, 2021. © 2021 Wiley Periodicals LLC.
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Affiliation(s)
- Tiffany Y Loh
- Division of Dermatology, University of Arizona, Tucson, Arizona, 72185
| | - Douglas C Wu
- Cosmetic Laser Dermatology, San Diego, California, 92121
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4
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Williams NM, Gurnani P, Labib A, Nuesi R, Nouri K. Melanoma in the setting of nevus of Ota: a review for dermatologists. Int J Dermatol 2020; 60:523-532. [PMID: 32808287 DOI: 10.1111/ijd.15135] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/09/2020] [Accepted: 07/20/2020] [Indexed: 11/26/2022]
Abstract
Nevus of Ota, also known as oculodermal melanocytosis or nevus fuscoceruleus ophthalmomaxillaris, is a benign dermal melanocytic nevus that most commonly affects Asian women. While the lesion is largely a cosmetic concern, it has the potential to undergo malignant transformation to melanoma. Patients with nevus of Ota often present to a dermatologist at some point for examination or removal with laser therapy. Therefore, it is important for dermatologists to understand the cutaneous and extracutaneous risks these lesions carry and how they may present to further optimize management and appropriate referrals. This review describes the demographic, clinical, and prognostic features of melanoma in the setting of nevus of Ota, divided by the nature of the primary melanoma: cutaneous, orbital, intracranial.
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Affiliation(s)
- Natalie M Williams
- Dr. Phillip Frost Department of Dermatology and Cutaneous Surgery, University of Miami Miller School of Medicine, Miami, FL, USA
| | - Pooja Gurnani
- Dr. Phillip Frost Department of Dermatology and Cutaneous Surgery, University of Miami Miller School of Medicine, Miami, FL, USA
| | - Angelina Labib
- Dr. Phillip Frost Department of Dermatology and Cutaneous Surgery, University of Miami Miller School of Medicine, Miami, FL, USA
| | - Ronaldo Nuesi
- Dr. Phillip Frost Department of Dermatology and Cutaneous Surgery, University of Miami Miller School of Medicine, Miami, FL, USA
| | - Keyvan Nouri
- Dr. Phillip Frost Department of Dermatology and Cutaneous Surgery, University of Miami Miller School of Medicine, Miami, FL, USA
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5
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Giannikaki S, Sturgess K, Scurrell E, Cebrian P, Escanilla N, Lowe RC. Oculodermal Melanocytosis: Nevus of Ota in a Dog. Vet Pathol 2019; 56:460-464. [PMID: 30686121 DOI: 10.1177/0300985818823667] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
This report describes the clinical presentation, diagnosis, and histopathologic features of oculodermal melanocytosis in a young dog. A 3-year-old male neutered Labrador Retriever presented with conjunctival and scleral hyperpigmentation of the right eye, with concurrent ipsilateral cutaneous hyperpigmentation involving the right side of the face. Initial skin and conjunctival biopsies revealed an accumulation of histologically benign melanocytes within the dermis and conjunctival stroma, respectively. Enucleation was elected 19 months later by the referring veterinarian due to the progression of ocular pigmentation with concurrent marked corneal lipidosis and the suspicion of a scleral mass. On gross and histopathologic examination of the globe, there was marked panuveal melanocytosis with extension into the sclera, bulbar conjunctiva, and connective tissue surrounding the optic nerve, as well as sharply demarcated ipsilateral hyperpigmentation of the facial skin. The findings are characteristic of oculodermal melanocytosis (nevus of Ota), a dermal melanocytic hamartoma presenting as cutaneous facial hyperpigmentation that corresponds to the distribution of the ophthalmic and maxillary branches of the trigeminal nerve, often with ipsilateral ocular involvement.
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6
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Figueira E, Rajak S, McKelvie P, Kalantzis G, Ismail A, Gonzales M, James C, McNab A, Selva D. Primary orbital melanoma: a case series and literature review. Orbit 2018; 37:352-357. [PMID: 29388848 DOI: 10.1080/01676830.2017.1423354] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/25/2017] [Accepted: 12/29/2017] [Indexed: 06/07/2023]
Abstract
Primary orbital melanoma (POM) is a very rare condition. We report further four cases and review all previously reported cases. We present a multicentre retrospective review of patients with POM. Clinical, radiological, surgical, histological, and follow-up data is presented. Four patients with POM were identified between 2000 and 2013. All presented with proptosis and diplopia without reduced vision. Two had known pre-existing blue cell naevi. All were stage T1N0M0. All underwent exenteration with adjuvant radiotherapy. All are disease free at follow-up durations of 24-151 months. The present three cases and review of all cases in the literature suggest a higher likelihood of disease-free survival from primary exenteration (7/8 disease-free survival, 1/8 death from metastatic disease) than wide local excision (7/16 disease-free survival, 9 recurrence or metastasis of whom 4 died). Adjuvant radiotherapy may additionally improve outcomes.
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Affiliation(s)
- Edwin Figueira
- a South Australian Institute of Ophthalmology , Royal Adelaide Hospital , Adelaide , Australia
- b Department of Ophthalmology , Prince of Wales Hospital , Randwick , NSW , Australia
| | - Saul Rajak
- a South Australian Institute of Ophthalmology , Royal Adelaide Hospital , Adelaide , Australia
- c The Sussex Eye Hospital , Brighton and Sussex University Hospital , Brighton , UK
| | - Penny McKelvie
- d Department of Anatomical Pathology , St Vincent's Hospital , Victoria , Australia
| | - George Kalantzis
- e Department of Ophthalmology , Leeds Teaching Hospital , Leeds , UK
| | - Azzam Ismail
- f Histopathology Department, Leeds Teaching Hospital NHS Trust , Leeds , UK
| | - Michael Gonzales
- g Department of Anatomical Pathology , Royal Melbourne Hospital , Melbourne , Victoria , Australia
| | - Craig James
- h Department of Histopathology , Adelaide Pathology Partners/Clinpath , Adelaide , South Australia
| | - Alan McNab
- i Orbital Plastic and Lacrimal Clinic , Royal Victorian Eye and Ear Hospital, Centre for Eye Research Australia , Melbourne , Victoria , Australia
| | - Dinesh Selva
- a South Australian Institute of Ophthalmology , Royal Adelaide Hospital , Adelaide , Australia
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7
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Furlan A, Adameyko I. Schwann cell precursor: a neural crest cell in disguise? Dev Biol 2018; 444 Suppl 1:S25-S35. [PMID: 29454705 DOI: 10.1016/j.ydbio.2018.02.008] [Citation(s) in RCA: 104] [Impact Index Per Article: 17.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2017] [Revised: 02/14/2018] [Accepted: 02/14/2018] [Indexed: 01/19/2023]
Abstract
Schwann cell precursors (SCPs) are multipotent embryonic progenitors covering all developing peripheral nerves. These nerves grow and navigate with unprecedented precision, delivering SCP progenitors to almost all locations in the embryonic body. Within specific developing tissues, SCPs detach from nerves and generate neuroendocrine cells, autonomic neurons, mature Schwann cells, melanocytes and other cell types. These properties of SCPs evoke resemblances between them and their parental population, namely, neural crest cells. Neural crest cells are incredibly multipotent migratory cells that revolutionized the course of evolution in the lineage of early chordate animals. Given this similarity and recent data, it is possible to hypothesize that proto-neural crest cells are similar to SCPs spreading along the nerves. Here, we review the multipotency of SCPs, the signals that govern them, their potential therapeutic value, SCP's embryonic origin and their evolutionary connections. We dedicate this article to the memory of Wilhelm His, the father of the microtome and "Zwischenstrang", currently known as the neural crest.
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Affiliation(s)
- Alessandro Furlan
- Cold Spring Harbor Laboratory, Cold Spring Harbor, New York 11724 USA
| | - Igor Adameyko
- Department of Physiology and Pharmacology, Karolinska Institutet, 17177 Stockholm, Sweden; Center for Brain Research, Medical University Vienna, 1090 Vienna, Austria.
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8
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Rose AM, Luthert PJ, Jayasena CN, Verity DH, Rose GE. Primary Orbital Melanoma: Presentation, Treatment, and Long-term Outcomes for 13 Patients. Front Oncol 2017; 7:316. [PMID: 29326884 PMCID: PMC5741819 DOI: 10.3389/fonc.2017.00316] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2017] [Accepted: 12/06/2017] [Indexed: 11/13/2022] Open
Abstract
BACKGROUND Periocular melanoma is a rare but often deadly malignancy that arises in the uvea (commonest origin), conjunctiva or orbit (rarest primary site). Melanoma accounts for 5-10% of metastatic/secondary orbital malignancies, but only a tiny proportion of primary orbital neoplasia. Primary orbital melanoma (POM) is exceedingly rare, with approximately 50 cases reported to date. METHODS All patients seen in the orbital unit at a tertiary referral hospital (1991-2016) with a biopsy-proven diagnosis of POM were identified from a diagnostic database and were studied. The case notes, imaging, surgical approach, and histology were reviewed. RESULTS Thirteen patients (five male; 38%) presented with isolated malignant melanoma of the orbit, for which no other primary site was identified at presentation or during an average follow-up of 44 months (median 22; range 0-13 years). The patients presented between the ages of 40 and 84 years (mean 55.5; median 48 years) and typically gave a short history of rapidly increasing proptosis and eyelid swelling. On the basis of history, a malignant lesion was suspected in most patients and all underwent incisional biopsy, with debulking of the mass in 10 (77%) patients, and skin-sparing exenteration in 3/13 (23%). Ten patients underwent orbital radiotherapy and the survival to date ranged from 9 months to 14 years (mean 55 months; median 23 months); two patients received solely palliative care for widespread disease and one patient refused orbital radiotherapy. Five of the 13 (38%) patients died from the disease. DISCUSSION POM is a very rare malignancy, but clinical analysis of this cohort gives insight into disease presentation and prognosis. The tumor typically presents with a rapidly progressive, well-defined mass that is, in some cases, amenable to macroscopically intact excision. Unusual for malignant melanoma, some of these patients can show an unusually long period of quiescent disease after surgical debulking and radiotherapy.
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Affiliation(s)
- Anna M. Rose
- Orbital Service, Moorfields Eye Hospital, London, United Kingdom
- UCL Institute of Ophthalmology, London, United Kingdom
- Department of Medicine, Imperial College London, London, United Kingdom
| | | | | | - David H. Verity
- Orbital Service, Moorfields Eye Hospital, London, United Kingdom
| | - Geoffrey E. Rose
- Orbital Service, Moorfields Eye Hospital, London, United Kingdom
- UCL Institute of Ophthalmology, London, United Kingdom
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9
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Plateroti AM, Scavella V, Abdolrahimzadeh B, Plateroti R, Rahimi S. An Update on Oculodermal Melanocytosis and Rare Associated Conditions. Semin Ophthalmol 2016; 32:524-528. [PMID: 27083007 DOI: 10.3109/08820538.2015.1118133] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Abstract
Oculodermal melanocytosis (ODM) is a rare disease, which is characterized by hyperpigmentation of facial skin and several parts of the eye, such as the sclera, conjunctiva, cornea, iris, ciliary body, and choroid. The condition usually affects the Asian female population. The most typical presenting ocular sign is iris heterocromia. Iris hyperpigmentation may be associated with iris mammillations, which are dome-shaped protuberations of the iris surface. They are linked to a higher risk of malignant transformation when present in patients with ODM. Glaucoma is a complication of ODM and is caused by angle abnormalities or mechanical occlusion by melanocytes in an open irido-corneal angle. Choroidal and ciliary body melanoma have a higher incidence in this condition characterized by melanocytosis. Patients presenting ODM should undergo routine ophthalmological examination in order to carefully monitor for glaucoma and melanoma.
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Affiliation(s)
- Andrea Maria Plateroti
- a Section of Ophthalmology, Department of Sense Organs , University of Rome "Sapienza," Rome , Italy
| | - Vittorio Scavella
- a Section of Ophthalmology, Department of Sense Organs , University of Rome "Sapienza," Rome , Italy
| | | | - Rocco Plateroti
- a Section of Ophthalmology, Department of Sense Organs , University of Rome "Sapienza," Rome , Italy
| | - Siavash Rahimi
- c Pathology Centre , Queen Alexandra Hospital , Portsmouth , UK
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10
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Dagi Glass L, Sullivan R, Freitag SK. New Translational Research in the Medical Management of Orbital Melanoma. Semin Ophthalmol 2016; 31:53-8. [DOI: 10.3109/08820538.2015.1114849] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
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11
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Tse JY, Walls BE, Pomerantz H, Yoon CH, Buchbinder EI, Werchniak AE, Dong F, Lian CG, Granter SR. Melanoma arising in a nevus of Ito: novel genetic mutations and a review of the literature on cutaneous malignant transformation of dermal melanocytosis. J Cutan Pathol 2016; 43:57-63. [PMID: 26260725 DOI: 10.1111/cup.12568] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/17/2015] [Revised: 07/28/2015] [Accepted: 08/02/2015] [Indexed: 12/19/2022]
Abstract
Dermal melanocytosis refers to a spectrum of benign melanocytic proliferations that includes Mongolian spot, nevus of Ota and nevus of Ito. These lesions most commonly occur in persons of Asian or African descent and are often present at birth or develop during childhood. Very rarely, dermal melanocytoses undergo malignant transformation. There have been only 13 reports in the literature of primary cutaneous melanoma arising in dermal melanocytoses. We report a case of a Chinese woman with melanoma arising in a congenital nevus of Ito. We performed targeted next-generation sequencing of the tumor which revealed mutations of GNAQ and BAP1, suggesting that alterations in these two genes led to malignant transformation of the nevus of Ito. We also provide a summary of reports in the literature regarding primary cutaneous melanoma arising in the context of dermal melanocytosis.
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Affiliation(s)
- Julie Y Tse
- Department of Pathology, Massachusetts General Hospital, Boston, MA, USA
| | - Brooke E Walls
- Department of Dermatology, Brigham & Women's Hospital, Boston, MA, USA
| | - Hyemin Pomerantz
- Department of Dermatology, Brigham & Women's Hospital, Boston, MA, USA
| | - Charles H Yoon
- Department of Surgery, Brigham & Women's Hospital, Boston, MA, USA
| | | | | | - Fei Dong
- Department of Pathology, Brigham & Women's Hospital, Boston, MA, USA
| | - Christine G Lian
- Department of Pathology, Brigham & Women's Hospital, Boston, MA, USA
| | - Scott R Granter
- Department of Pathology, Brigham & Women's Hospital, Boston, MA, USA
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12
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Affiliation(s)
- Pukhraj Rishi
- Shri Bhagwan Mahavir Vitreoretinal Services, Sankara Nethralaya, Chennai, Tamil Nadu, India
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13
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Tregnago AC, Furlan MV, Bezerra SM, Porto GCLM, Mendes GG, Henklain JVR, Pinto CAL, Kowalski LP, de Carvalho GB, Costa FD. Orbital melanocytoma completely resected with conservative surgery in association with ipsilateral nevus of Ota: report of a case and review of the literature. Head Neck 2014; 37:E49-55. [PMID: 24989678 DOI: 10.1002/hed.23828] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 06/29/2014] [Indexed: 12/17/2022] Open
Abstract
BACKGROUND Melanocytomas are rare pigmented primary lesions of the central nervous system arising from melanocytes of leptomeninges. They occur most frequently in the posterior fossa, Meckel's cave, or along the cervical and thoracic spinal cord. Orbital melanocytomas have been rarely reported. Nevus of Ota is a melanocytic lesion that can be associated with cutaneous and meningeal melanocytic neoplasms. METHODS AND RESULTS We describe a case of an orbital melanocytoma associated with ipsilateral Nevus of Ota. A 28-year-old man presented with proptosis and an ipsilateral congenital facial melanocytic lesion (Nevus of Ota). After imaging evaluation, a retro-orbital mass was discovered. A needle biopsy was performed and the diagnosis of melanocytoma rendered. The patient underwent complete surgical excision of the lesion. CONCLUSION In order to make the correct diagnosis and to choose the appropriate therapy, it is important to be aware of this rare presentation and its association with Nevus of Ota.
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Affiliation(s)
- Aline C Tregnago
- Department of Anatomic Pathology, A. C. Camargo Cancer Center, São Paulo, Brazil
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