Abstract
An 83-year-old man presented with a painless, firm, right upper eyelid lesion, present for 4 years. Eyelid eversion revealed a firm pedunculated lesion, approximately 1 × 1-cm diameter, with flattened top molded to the globe contour and overlying conjunctival follicular reaction (Fig A). The lesion was excised at the base and found to macroscopically originate from the tarsus. Histopathology showed spindle cells in a dense collagen matrix (Fig B). Immunohistochemical staining of the spindle cells was diffusely positive for CD34 (Fig C) and focally positive for Factor XIIIa (Fig D), markers for fibrohistiocytic tumors.
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