Isolated Conjunctival Lymphaticovenous Malformation Presenting as Persistent Conjunctival Chemosis

Vascular lesions of the conjunctiva are a group of rare conditions that involve abnormal growth or development of blood vessels or lymphatics in the conjunctiva (1- 5). They may present as dilated, tortuous, or malformed vessels, which can cause redness, swelling, and bleeding in the affected area (1-5). They can be broadly classified into two main categories: vascular tumors like hemangioma and vascular malformations like hamartoma or lymphaticovenous malformations (LVM) formerly known as lymphangioma (1-6). Vascular tumors are characterized by the presence of rapidly growing, well-defined masses of blood vessels, while vascular malformations are typically present at birth and consist of abnormally formed blood vessels that do not proliferate like tumors (6). Beside of these benign tumors and malformations, Kaposis's sarcoma is a rare malignant tumor (2). All these lesions can affect one or both eyes, and may cause symptoms e.g. blurred vision, foreign body sensation, redness, epiphora and bleeding. Treatment strategies depend on etiology, size and location of the lesion as well as patient's symptoms, and may include observation, surgical excision, laser- and cryo therapy, injection of therapeutic agents among others. (1-9). We describe a patient with an isolated conjunctival LVM, who presented with cystic hyposphagma to our emergency department. © 2023 Georg Thieme Verlag. All rights reserved.