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Primary iris stromal cysts. A report of 17 cases
N Lois1, C L Shields, J A Shields
1Ocular Oncology Service, Wills Eye Hospital, Thomas Jefferson University, Philadelphia, Pennsylvania, USA.
Objective:
To describe clinical characteristics, management, and complications of primary iris stromal cysts.
Design:
A retrospective review.
Results:
Seventeen consecutive patients with primary iris stromal cysts were found. Nine (52%) patients were diagnosed under age 10 years (range, 1 day-7 years), and eight (47%) patients were diagnosed after age 10 years (range, 14-71 years). Overall, the cyst appeared unilaterally as a solitary clear translucent mass dissecting the iris stroma in all cases. The children with a primary iris stromal cyst demonstrated a more aggressive course than teenagers or adults. In children, the cyst obstructed the visual axis in eight cases (88%), requiring treatment such as aspiration, cryotherapy, and resection. In seven children, multiple treatments were necessary. Ultimate control of the cyst was achieved in all cases using techniques of needle aspiration (with or without cryotherapy) in three cases and using resection in five cases. Primary iris stromal cysts in teenagers and adults necessitated intervention in only two cases (25%).
Conclusion:
Primary iris stromal cysts can occur in children, teenagers, and adults. In children, primary stromal iris cysts appear to have a more aggressive clinical course, often requiring several treatments for globe and vision preservation.