Contralateral orbicularis oculi muscle transposition in facial paralysis: functional, aesthetic and electromyographic outcomes. A case report and literature update.

Purpose: Many surgical approaches have been described for achieving satisfactory functionality in patients with facial paralysis, to ensure the protection of the cornea and the highest degree of physiological blinking. Out of all those available, dynamic techniques are indicated when motion recovery and synchrony are the goals pursued. transposition (OOT) allows a genuine restoration of blinking by means of contralateral reinnervation, with minimal insult for the donor site.

Epithelioid hemangioma of the orbit or angiolymphoid hyperplasia with eosinophilia.

A patient was referred to the department for an incidentally discovered right orbital mass on MRI. After surgical excision, histopathologic examination led to the diagnosis of epithelioid hemangioma, a tumor rarely located in the orbit, whose main histopathologic feature is an exuberant proliferation of small vascular channels lined by enlarged endothelial cells. The clinical characteristics and histopathology of epithelioid hemangioma allow differentiation with Kimura disease, angiosarcoma, intravascular papillary endothelial hyperplasia, and other vascular tumors that share the common feature of an abnormal proliferation of endothelial cells.

Optic neuropathy following orbital irradiation for Graves' ophthalmopathy: a case report and literature review.

Radiation optic neuropathy (RON) is a devastating complication of radiotherapy to the anterior visual pathway resulting in acute, profound and sometimes irreversible visual loss. Cumulative doses of radiation that exceed 50 Gy or radiation fractions of greater than 2 Gy are usually required for RON to develop. Several factors, such as diabetes and pre-existing compression of the optic nerve, are associated with a higher risk for developing RON at lower doses of radiation.

Orbital nerve sheath myxoma: a case report.

A 72-year-old man was referred to the Service of Ophthalmology due to a 2-year history of ptosis and a painless mass in the lateral orbital margin of the right eye. Orbital MRI revealed a well-demarcated lesion in the superotemporal quadrant of the orbit. After surgical excision, histopathological examination led to the diagnosis of nerve sheath myxoma, a tumor composed of myxoid nodules separated by fibrous septa with spindle-shaped and stellate cells.

Idiopathic sclerosing orbital inflammation with intranasal extension.

Introduction: To report a case of idiopathic orbital sclerosing inflammation (ISOI) with intranasal extension.

Material And Methods: The patient presented with a 6-month history of epiphora, upper eyelid swelling, ptosis and mild orbital pain. Ophthalmologic examination, CT, MRI and biopsy with surgical debulking were performed.