purpose: to specify histopathologic features of corneal involvement in a case with xeroderma pigmentosum (xp). case report: a 19-year-old man with a clinical diagnosis of xp presented with bilateral corneal leukoma and decreased visual acuity predominatly in his right eye. penetrating keratoplasty was performed in the right eye due to severe corneal opacity, vascularization and lipid deposition...