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Epiphyseal extension of a unicameral bone cyst
A H Haims1, P Desai, D Present
1Department of Pathology, St. Lukes-Roosevelt Hospital Center, New York, USA.
Abstract:
Epiphyseal extension of a unicameral bone cyst is rare. We report a case of a 13-year-old boy with three pathological fractures through a unicameral bone cyst with epiphyseal involvement in the proximal humerus. These lesions initially tends to expand the humeral epiphysis laterally and progress medially. They also commonly cause a slip of the epiphysis in a medical direction. They also have a greater association with growth retardation and lesser degree of recurrence than their metaphyseal counterpart.
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