Endoscopic enucleation and clinicopathologic correlation of a small choroidal melanoma hiding massive extrascleral extension

Purpose: To report the unusual case of a previously stable choroidal nevus, closely followed for over 15 years, which underwent malignant transformation into small choroidal melanoma with massive extrascleral extension. Observations: A 67-year-old Caucasian female was referred to the Stanford Ocular...

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Main Authors: Michael D. Yu, Bryce Chiang, Malini Veerappan Pasricha, Benjamin P. Erickson, Prithvi Mruthyunjaya
Format: Article
Language:English
Published: Elsevier 2023-03-01
Series:American Journal of Ophthalmology Case Reports
Subjects:
Online Access:http://www.sciencedirect.com/science/article/pii/S2451993623000051
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author Michael D. Yu
Bryce Chiang
Malini Veerappan Pasricha
Benjamin P. Erickson
Prithvi Mruthyunjaya
author_facet Michael D. Yu
Bryce Chiang
Malini Veerappan Pasricha
Benjamin P. Erickson
Prithvi Mruthyunjaya
author_sort Michael D. Yu
collection DOAJ
description Purpose: To report the unusual case of a previously stable choroidal nevus, closely followed for over 15 years, which underwent malignant transformation into small choroidal melanoma with massive extrascleral extension. Observations: A 67-year-old Caucasian female was referred to the Stanford Ocular Oncology Service with concern for malignant transformation of a previously stable choroidal nevus in her left eye. Her funduscopic examination demonstrated a dome-shaped choroidal lesion with overlying associated lipofuscin and subretinal fluid, consistent with a diagnosis of small choroidal melanoma. By B-scan ultrasonography, the lesion measured 8.0 × 6.0 mm in base and 2.1 mm in thickness. B-scan ultrasonography also disclosed an associated retroscleral mass, which appeared contiguous with the intraocular melanoma and was confirmed on subsequent orbital magnetic resonance imaging. A decision was made to proceed with enucleation. Under direct endoscopic visualization, the globe and extrascleral mass were fully isolated, mobilized, and removed in toto. At 24 months post-enucleation, the patient remains disease-free without evidence of systemic metastasis or local recurrence. Conclusions/importance: This case describes a small choroidal melanoma hiding massive extrascleral extension, underscoring the value of B-scan ultrasonography. This case also describes the unique management of choroidal melanoma with extrascleral extension using endoscopic enucleation. Performing enucleation under direct endoscopic visualization ensures complete resection and prevents inadvertent transection of the extrascleral component.
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spelling doaj.art-d2e59745031545bca6bac184ca8c5b1b2023-02-17T04:55:15ZengElsevierAmerican Journal of Ophthalmology Case Reports2451-99362023-03-0129101797Endoscopic enucleation and clinicopathologic correlation of a small choroidal melanoma hiding massive extrascleral extensionMichael D. Yu0Bryce Chiang1Malini Veerappan Pasricha2Benjamin P. Erickson3Prithvi Mruthyunjaya4Ocular Oncology Service, Byers Eye Institute, Stanford University, 2452 Watson Ct, Palo Alto, CA, 94303, USAOcular Oncology Service, Byers Eye Institute, Stanford University, 2452 Watson Ct, Palo Alto, CA, 94303, USAOcular Oncology Service, Byers Eye Institute, Stanford University, 2452 Watson Ct, Palo Alto, CA, 94303, USAOcular Oncology Service, Byers Eye Institute, Stanford University, 2452 Watson Ct, Palo Alto, CA, 94303, USA; Oculoplastic Surgery & Orbital Oncology Service, Byers Eye Institute, Stanford University, 2452 Watson Ct, Palo Alto, CA, 94303, USAOcular Oncology Service, Byers Eye Institute, Stanford University, 2452 Watson Ct, Palo Alto, CA, 94303, USA; Corresponding author.Purpose: To report the unusual case of a previously stable choroidal nevus, closely followed for over 15 years, which underwent malignant transformation into small choroidal melanoma with massive extrascleral extension. Observations: A 67-year-old Caucasian female was referred to the Stanford Ocular Oncology Service with concern for malignant transformation of a previously stable choroidal nevus in her left eye. Her funduscopic examination demonstrated a dome-shaped choroidal lesion with overlying associated lipofuscin and subretinal fluid, consistent with a diagnosis of small choroidal melanoma. By B-scan ultrasonography, the lesion measured 8.0 × 6.0 mm in base and 2.1 mm in thickness. B-scan ultrasonography also disclosed an associated retroscleral mass, which appeared contiguous with the intraocular melanoma and was confirmed on subsequent orbital magnetic resonance imaging. A decision was made to proceed with enucleation. Under direct endoscopic visualization, the globe and extrascleral mass were fully isolated, mobilized, and removed in toto. At 24 months post-enucleation, the patient remains disease-free without evidence of systemic metastasis or local recurrence. Conclusions/importance: This case describes a small choroidal melanoma hiding massive extrascleral extension, underscoring the value of B-scan ultrasonography. This case also describes the unique management of choroidal melanoma with extrascleral extension using endoscopic enucleation. Performing enucleation under direct endoscopic visualization ensures complete resection and prevents inadvertent transection of the extrascleral component.http://www.sciencedirect.com/science/article/pii/S2451993623000051ChoroidMelanomaExtraocular extensionMetastasis
spellingShingle Michael D. Yu
Bryce Chiang
Malini Veerappan Pasricha
Benjamin P. Erickson
Prithvi Mruthyunjaya
Endoscopic enucleation and clinicopathologic correlation of a small choroidal melanoma hiding massive extrascleral extension
American Journal of Ophthalmology Case Reports
Choroid
Melanoma
Extraocular extension
Metastasis
title Endoscopic enucleation and clinicopathologic correlation of a small choroidal melanoma hiding massive extrascleral extension
title_full Endoscopic enucleation and clinicopathologic correlation of a small choroidal melanoma hiding massive extrascleral extension
title_fullStr Endoscopic enucleation and clinicopathologic correlation of a small choroidal melanoma hiding massive extrascleral extension
title_full_unstemmed Endoscopic enucleation and clinicopathologic correlation of a small choroidal melanoma hiding massive extrascleral extension
title_short Endoscopic enucleation and clinicopathologic correlation of a small choroidal melanoma hiding massive extrascleral extension
title_sort endoscopic enucleation and clinicopathologic correlation of a small choroidal melanoma hiding massive extrascleral extension
topic Choroid
Melanoma
Extraocular extension
Metastasis
url http://www.sciencedirect.com/science/article/pii/S2451993623000051
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