Iris Leiomyoma Clinical Presentation

Updated: Feb 06, 2014
  • Author: Manolette R Roque, MD, MBA, FPAO; Chief Editor: Hampton Roy, Sr, MD  more...
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Presentation

History

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  • This tumor is usually a benign iris mass that remains clinically stationary for many years. See Physical.
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Physical

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  • Lenticular astigmatism may be a subtle sign of an anterior segment tumor, ie, iris leiomyoma. [3]
  • Leiomyoma of the iris is a localized, flat to slightly elevated mass, often at the region of the sphincter muscle. It is found less commonly in the iris periphery and the anterior chamber angle.
  • Clinically, the tumor appears nonpigmented (sometimes lightly pigmented), transparent (grayish white to pink colored), and vascular.
  • Ectropion iridis is a common finding in the area of the tumor.
  • Leiomyoma of the iris may be difficult to differentiate from an amelanotic iris melanoma.
  • These tumors can be clinically stationary for many years.
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Causes

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  • The cause of leiomyoma of the iris is unknown. See Pathophysiology.
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