Nature: Lacrimal gland choristoma in a preterm infant, presenting with spontaneous hyphema and increased intraocular pressure Choristoma is a congenital tumor of tissues not normally present in the involved area. Lacrimal gland choristoma or ectopic lacrimal gland tissue is an uncommon lesion of the eye that can be seen in ... Lacrimal gland choristoma in a preterm infant, presenting with spontaneous hyphema and increased intraocular pressure