Hemangiopericytoma of the ciliary body
S. C. Gieser, T. J. Hufnagel, P. A. Jaros, D. MacRae and A. A. Khodadoust
Department of Ophthalmology, Yale University School of Medicine, New Haven, CT 06510-8061.
A 60-year-old woman had a ciliary body tumor that resembled an amelanotic
malignant melanoma by clinical examination. The magnetic resonance imaging
scan correlated with the clinical diagnosis. Because of apparent rapid
growth, her eye was enucleated. However, histopathologic examination
revealed a highly vascularized, spindle-cell tumor harboring immunoreactive
actin and vimentin. Electron microscopy further supported the diagnosis of
hemangiopericytoma with smooth-muscle differentiation. To our knowledge,
this is the first report of a hemangiopericytoma of the ciliary body.
