Primary Orbital Melanoma Combined With Giant Divided Nevus of the Eyelid:

Primary orbital melanoma: A report of a case and comprehensive review of the literature

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.

Primary Orbital Melanoma: An Investigation of a Rare Malignancy Using the National Cancer Database

OBJECTIVES

Primary orbital melanoma (POM) is a rare disease with limited data on survival and best treatment practices. Here we utilize the National Cancer Database (NCDB) to determine the overall survival (OS) and covariates that influence mortality.

STUDY DESIGN

Retrospective cohort study.

METHODS

All patients diagnosed with POM from 2004 to 2016 were identified in the NCDB. Patient and oncologic data were analyzed using the Kaplan-Meier method and multivariate models for the primary outcome of OS.

RESULTS

A total of 129 patients were identified. Median OS was 36.9 months (95% confidence interval [CI] 24.1-78.7 months) with mean 5-year survival of 42.0% (CI 33.2%-53.2%). Treatments received included surgery alone (43.4%), radiation alone (23.3%), and surgery followed by radiation (20.2%). The multivariate model demonstrated an increased risk of death associated with age over 80 years (hazard ratio [HR] 3.41, CI 1.31-8.86, P = .012), a Charlson-Deyo comorbidity score of 2 or greater (HR 5.30, CI 1.87-15.03, P = .002), and no treatment (HR 2.28, CI 1.03-5.06, P = .042). For every 1 cm increase in tumor size, there was an increased risk of death (HR 1.06, CI 1.00-1.13, P = .039). When compared to surgery alone, no other treatment modality had an effect on OS.

CONCLUSIONS

This study leveraged multiyear data from the NCDB to provide prognostic and demographic information on the largest known cohort of POM cases. Increased age, increased comorbidities, not receiving treatment, and larger tumor size were associated with increased mortality. There was no clear survival advantage for specific treatments.

LEVEL OF EVIDENCE

4 Laryngoscope, 131:1790-1797, 2021.

[Clinical application of modified kite flap in treatment of divided nevus of lateral canthus]

OBJECTIVE

To investigate the effectiveness of modified kite flap in repair of soft tissue defect after divided nevus of lateral canthus excision.

METHODS

Between October 2010 and April 2018, 20 children (20 eyes) with divided nevus of lateral canthus were admitted. There were 13 boys and 7 girls, with an average age of 7.9 years (mean, 4-14 years). There were 11 cases of moderate range lesions (maximum diameter, 1.5-2.0 cm) and 9 cases of small range lesions (maximum diameter, <1.5 cm). After excising the divided nevus of lateral canthus, the area of soft tissue defect ranged from 0.72 to 3.23 cm2。The modified kite flap was used to reconstruct the structure and shape of lateral canthus.

RESULTS

There were 16 cases of mixed nevus and 4 cases of intradermal nevus. The flaps survived and the incisions healed by the first intention. The patients were followed up 12-22 months (mean, 13.6 months). There was no malformation, valgus, exposure keratitis, or obvious scar. No malignant transformation occurred or nevus recurred during follow-up. At last follow-up, the effectiveness was rated as excellent in 16 cases, good in 3 cases, and poor in 1 case.

CONCLUSION

The modified kite flap can repair the soft tissue defect after excising the divided nevus of lateral canthus, and obtain the good appearance and function of lateral canthus.

Primary orbital melanoma: a case series and literature review

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.

Primary Orbital Melanoma: Presentation, Treatment, and Long-term Outcomes for 13 Patients

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.

Staged Surgery with Total Excision and Lamellar Reconstructive for Medium-sized Divided Nevus of the Eyelids

Supplemental Digital Content is available in the text.

Background:

To explore a prior treatment strategy for medium-sized (1.5–20 cm) divided nevus of the eyelids.

Methods:

Six patients who suffered from divided nevus of eyelids were recruited to this prospective, case series study between July 2008 and January 2014 (4 male and 2 female patients). The patients’ ages ranged from 14 to 29 years, with an average age of 24.5 years. All lesions were medium-sized (1.5–20 cm in diameter) and invaded eyelid margins and the posterior lamella of eyelids. Staged surgery involved total excision of lesions and then repair of the defects with advanced skin flaps and tarsoconjunctival flaps. Two staged surgeries were completed at intervals of at least 3 months.

Results:

All of the patients were followed up at least 3 months after the second surgery. Malignant transformation and recurrence were not observed. All of the flaps survived well, and all of the donor sites were healed with inconspicuous scarring. The only complication was eyelash sacrifices, and 5 of 6 patients suffered from this complication. Excellent cosmetic results were gained in all patients, with the exception of 1 patient who thought his postoperative appearance was only good because of the impalpable disparity in color and thickness between the skin flaps and recipient sites.

Conclusions:

A staged surgery approach with the total excision of lesions and lamellar reconstructive procedures to repair the defect is a reasonable treatment strategy and can achieve satisfactory cosmetic results for medium-sized (1.5–20 cm in diameter) divided nevus of eyelid.