A Case of Melanocytoma Originating from the Iris

Jin Ah Lee; Yong Sun Ahn; Yang Kyung Cho

doi:10.3341/jkos.2014.55.5.789

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Lee, Ahn, and Cho: A Case of Melanocytoma Originating from the Iris

Case Report

J Korean Ophthalmol Soc 201;55(5):789-793.

Published online: 30 August 2014

DOI: https://doi.org/10.3341/jkos.2014.55.5.789

A Case of Melanocytoma Originating from the Iris

Jin Ah Lee, MD, Yong Sun Ahn, MD, Yang Kyung Cho, MD, PhD

Department of Ophthalmology, St. Vincent's Hospital, The Catholic University of Korea College of Medicine, Suwon, Korea

Address reprint requests to Yang Kyung Cho, MD, PhD, Department of Ophthalmology, St. Vincent's Hospital, The Catholic University of Korea, #93 Jungbu-daero, Paldal-gu, Suwon 442-723, Korea, Tel: 82-31-249-7343, Fax: 82-31-251-6225, E-mail: yangkyeung@hanmail.net

Received 30 August 2013 Revised 17 November 2013 Accepted 1 April 2014

This is an Open Access article distributed under the terms of the Creative Commons Attribution Non-Commercial License (http://creativecommons.org/licenses/by-nc/3.0/) which permits unrestricted non-commercial use, distribution, and reproduction in any medium, provided the original work is properly cited.

Abstract

Purpose

To report a case of melanocytoma originating from the iris observed for the first time in Korea.

Case summary

A 53-year-old female with an unexpected iris mass was referred to our clinic. A round, 2.5 mm x 3.5 mm-sized iris mass was found on slit lamp examination in the 12 o'clock area of the patient's left eye. The mass was densely pigmented and had a smooth surface. Gonioscopy showed the mass had reached the peripheral cornea frontward and the lens backward. An excisional biopsy was performed for diagnosis. After the operation, a gonioscopic examination showed an intact ciliary body behind the surgical margin of the iris. A melancytoma of the iris was observed on subsequent histopathological examination. The patient has remained symptom-free with no iris mass recurrence since the operation.

Conclusions

A few cases of iris melanocytomas have been reported worldwide but not in Korea. We confirmed a case of melanocytoma originating from the iris for the first time in Korea.

Keywords: Iris, Melanocytoma

References

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Figure 1.

Preoperative image of the iris mass (A) A slit lamp exam shows a 2.5 mm ×3.5 mm sized, brownish-black mass occupying 12 o'clock area of the iris. (B) The gonioscopic view of a protruded, convex mass that is contacting the posterior surface of the cornea and the anterior surface of the lens.

Figure 2.

The postoperative image of the intact ciliary body behind the surgical margin of the iris shown through gonioscopic examination.

Figure 3.

The histopathologic images of the specimen (A) Abundant melanin pigments obscuring nuclear details in the cytoplasm (×40). (B) Microscopic appearance of the specimen with polyhedral cells heavily pigmented with prominent nucleoli (× 400).

Figure 4.

(A) A slit lamp examination at postoperative day 1. (B) A slit lamp examination at postoperative 3 month. The Photograph of the resected iris taken 3 months after excisional biopsy shows no recurrence. (Arrow: tinged corneal endothelial lesion by original mass shows no change between the intervals.)

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