Congenital Fibrosis of the Extraocular Muscles: a Rare Entity

Full Article

JJK Ip, MM Marcet, KW Yan, WWM Lam, MT Chau

Hong Kong J Radiol 2013;16:236-40

DOI: 10.12809/hkjr1311071

Congenital restriction of ocular movements could be due to various abnormalities. One of the rarest causes is fibrosis of the extraocular muscles. Congenital fibrosis of the extraocular muscles is a congenital non-progressive strabismus syndrome, characterised by diffusely infiltrative orbital lesions with secondary involvement of extraocular muscles, resulting in variable restrictive external ophthalmoplegia due to the cicatricial process. Congenital fibrosis of the extraocular muscles can be unilateral or bilateral and affect any or all of the muscles, and the degree of fibrosis of a muscle can be total or partial. We report on a patient with congenital fibrosis of the extraocular muscles, and review the clinical presentation, magnetic resonance imaging features, and correlation with intraoperative and histopathological findings. A brief literature review is also provided.




葉精勤、MM Marcet、殷堅榮、林慧文、周明德