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Eye is the official journal of the Royal College of Ophthalmologists. It aims to provide the practising ophthalmologist with information on the latest clinical and laboratory-based research.
Citations
... 1-6 Histopathology shows mature, compact bone surrounded by fibrous connective tissue. [1][2][3][4][5][6] Typically there are Haversian canals and no bone marrow (although there are a few case reports describing the presence of hematopoietic tissue). 5 Nonocular osseous choristomas occur in the oral cavity, particularly in the tongue, but have also been described in other soft-tissue locations of the head and neck region. ...
Ocular osseous choristoma, a rare idiopathic benign deposit of bone, is typically a static epibulbar lesion that occurs sporadically in the supertemporal quadrant of an otherwise normal eye. The subject of this report is a unique U-shaped subcutaneous osseous choristoma that did not involve the eye itself but rather conformed to the right lateral canthus in an otherwise normal 2-year-old boy.
Choristomas are benign, congenital tumours composed of normal tissue in an abnormal location. Osseous choristomas represent the rarest form of epibulbar choristomas, with now 65 cases reported in the literature. We did a retrospective clinicopathological study of all patients with epibulbar osseous choristoma observed at our institution since 1982 and updated the last review of the literature.
Three Caucasian male patients, aged between 3 months and 11 years, were identified. All osseous choristomas were located under the superotemporal bulbar conjunctiva of the right eye.
All lesions were managed with surgical excision. Histopathology revealed the presence of lamellar bone in all cases, one of which was associated with a dermolipoma.
We report a small rare case series of 3 epibulbar osseous choristomas and did a review of the literature. In one patient, the osteoma was associated with a dermolipoma, corresponding to the fourth reported complex choristoma of this type, in an otherwise normal eye, in the literature.
Epibulbar osseous choristomas typically present, in the young, as a supero-temporal subconjunctival nodule and radiographic imaging often shows a densely radio-opaque fleck on the sclera--this often being misinterpreted as a parabulbar foreign body. Four illustrative cases are presented.
