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Observation
January 2014

Intramuscular Hemangioma of the Inferior ObliqueA Rare Cause of Extraocular Muscle Enlargement

Author Affiliations
  • 1Department of Ophthalmology, New York University Langone Medical Center, New York
JAMA Ophthalmol. 2014;132(1):122-124. doi:10.1001/jamaophthalmol.2013.6079

Intramuscular hemangioma of skeletal muscle is common within systemic sites but very rare within extraocular muscle. We describe a patient with an enlarged inferior oblique who harbored such a lesion.

A healthy 25-year-old man noted a gradually painless left lower eyelid mass of 1 year’s duration. He denied diplopia and blurred vision. Best-corrected visual acuity was 20/20 OD and 20/25 OS. There was left hyperglobus with a firm, mobile, nontender mass palpable through the left lower eyelid (Figure 1A). While versions appeared full, diplopia could be elicited in downgaze and left gaze. Exophthalmometry showed 1 mm of proptosis in the left eye. No other ocular abnormalities were noted.

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