Corneoscleral locally aggressive fibrous histiocytoma in Xeroderma Pigmentosum patient: A case report.

Xeroderma pigmentosum (XP) is a rare autosomal recessive disorder that has been found in all continents and racial groups in relation to faulty repair of DNA with sun exposure. Several cutaneous and ocular tumors have been described in relation to XP including fibrous histiocytoma (FH). The diagnosis of conjunctival FH is challenging owing to the rarity of this tumor and the diversity of its classification into benign, locally aggressive and malignant. We are describing a recurrent FH exhibiting a locally aggressive behavior in a child with history of XP. Detailed histopathological features are presented with literature review.