A rare case of conjunctival malignant melanoma with orbital invasion

  • Yogita Rajbhandari Tilganga Institute Of Ophthalmology, Gaushala, Kathmandu
  • Sharad Gupta Sagarmatha Choudhary Eye Hospital, Siraha, Lahan
  • Reena Yadav Sagarmatha Choudhary Eye Hospital, Siraha, Lahan
  • Ashma Manandhar Tilganga Institute Of Ophthalmology, Gaushala, Kathmandu
  • Aye Myat Mon Tilganga Institute Of Ophthalmology, Gaushala, Kathmandu
  • Pramiti Joshi Tilganga Institute Of Ophthalmology, Gaushala, Kathmandu
  • Gulshan Bahadur Shrestha B.P Koirala Lions Centre for Ophthalmic Studies, Maharajgunj Kathmandu
Keywords: Conjunctival malignant melanoma, De novo, Incisional biopsy

Abstract

Background: Conjunctival malignant melanoma is a rare ocular malignancy most commonly affecting mostly the elderly population. It is a pigmented lesion which canarise from primary acquired melanosis, de novo or from preexisting nevus.

Case: A 63 year old male presented with a chief complaints rapidly increasing mass in the left eye for two months following trauma with a wooden stick. He had preexisting nevus in the same eye. His best corrected visual acuity was 6/12 in right eye and 1/60 left eye respectively. Slit lamp biomicroscopy examination showed 4 cm x 4 cm pigmented mass in the nasal bulbar and inferior palpebral conjunctiva causing mechanical ectropion of the lower lid with keratinization of palpebral conjunctiva. Incisionalbiopsy of conjunctiva showed malignant melanoma. On computed tomography, there was expansion of bony orbit. Considering all the findings, exenteration of the left orbitwas done. Histopathological report of exenterated mass was suggestive of malignantmelanoma of conjunctiva.

Conclusion: Conjunctival melanoma is a rare malignant tumor of eye which has high metastasis rate and the treatment option is surgery with adjuvant therapy.

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Abstract
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Published
2019-09-02
How to Cite
Rajbhandari, Y., Gupta, S., Yadav, R., Manandhar, A., Mon, A., Joshi, P., & Shrestha, G. B. (2019). A rare case of conjunctival malignant melanoma with orbital invasion. Nepalese Journal of Ophthalmology, 11(1), 77-81. https://doi.org/10.3126/nepjoph.v11i1.25425
Section
Case Reports