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Ophthalmic Images
May 12, 2016

Visualization of a Hematoma of the Cloquet Canal

Author Affiliations
  • 1Department of Ophthalmology, Blanton Eye Institute, Houston Methodist Hospital, Houston, Texas
  • 3Department of Ophthalmology, Neurology, and Neurosurgery, Weill Cornell Medicine, New York, New York
  • 4Department of Ophthalmology, University of Texas Medical Branch, Galveston
  • 5Baylor College of Medicine and the University of Iowa Hospitals and Clinics, Iowa City
  • 2Baylor College of Medicine, Houston, Texas
JAMA Ophthalmol. 2016;134(5):e155364. doi:10.1001/jamaophthalmol.2015.5364

A white man in his mid to late forties with a history of Huntington disease presented with acute painful left eye vision loss. He was diagnosed with acute angle-closure glaucoma secondary to iris neovascularization and underwent diode cyclophotocoagulation after combination topical and systemic medical treatment failed. Workup included ultrasonography examination owing to unsuccessful left fundus visualization. This revealed a hyperechoic lesion within the vitreous, consistent with a Cloquet canal hematoma (Figure, A). Magnetic resonance imaging of the orbit also confirmed the intravitreal hyperintense lesion located anterior to the optic nerve (Figure, B).

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