Peri-orbital Masson's tumor: a case report and literature review.

Masson tumor is a benign vascular lesion characterized by an intravascular papillary endothelial hyperplasia. Peri orbital locations are rare. We report a case of Masson tumor localized in the upper internal angle of the left orbit revealed by progressive ocular proptosis. Orbital computed tomography (CT) scan and magnetic resonance imaging (MRI) showed a vascular mass in the left internal canthus mimicking an arterioveinous malformation. The patient underwent total removal of the lesion with a favorable postoperative follow up. Histological examination found an intravascular papillary endothelial hyperplasia without atypical features corresponding to Masson tumor. A thorough literature review of Masson tumor is presented with a discussion of clinical findings and management.

Third Cranial Nerve Palsy Presenting with Unilateral Diplopia and Strabismus in a 24-Year-Old Woman with COVID-19.

BACKGROUND Coronavirus disease (COVID 19) is caused by severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) and is the causative agent of a serious disease that is of great global public health concern. Palsy of the third cranial nerve is very rare in patients with confirmed 2019 novel coronavirus disease (COVID-19). We describe the case of a patient with an incomplete palsy of the left third cranial nerve sparing the pupils in the context of SARS-CoV-2 virus infection. CASE REPORT We report the case of a 24-year-old woman with confirmed COVID-19, which presented with acute onset of diplopia and strabismus of the left eye that occurred 3 days after the start of general symptoms. The patient had no significant medical history. Based on detailed ophthalmic and neurological examination, acute painless incomplete palsy of the third cranial nerve was suspected. Oculo-cerebral magnetic resonance angiography was unremarkable. Blood tests revealed mild normocytic regenerative anemia. According to the Moroccan recommendations, chloroquine and azithromycin were started. After what, a quick improvement of exotropia and diplopia was observed, and complete recovery was obtained by the sixth day of treatment. No adverse effects of the treatment were noted. CONCLUSIONS Severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) can cause neurological complications such as cranial nerve palsy. The pathological mechanism remains unclear. Full recovery of the ocular motricity is possible, and prognosis depends on the severity of the respiratory illness.

[Corneal transplantation: study carried out at the Department of Ophthalmology, University Hospital Center Mohammed VI, Marrakech]. / Greffe de cornée: expérience du service d'ophtalmologie au CHU Mohammed VI de Marrakech, Maroc.

Penetrating keratoplasty is one of the most common tissue grafts and organ transplantations. The aim of our study was to report our experience in corneal transplantation. A prospective study of 195 patients who underwent corneal transplantation over the period from August 2009 to August 2015. Mean follow-up was 21 months. The indications for transplantation were keratoconus 33,8%, trauma-related sequelae 10,7%, bullous keratopathy 19,5%, hereditary dystrophies 10,7% and herpes keratitis 9,2%. Initial visual acuity was less than 1/10 in 90% of the cases. We observed corneal graft rejection in 19 eyes (14 were recoverables), 33 ocular hypertonia, 20 cataracts, 2 without significant pathological history. Corneal transplantation appears as a surgical intervention giving good anatomical and functional results. The results should not obscure a close and regular post operative monitoring to screen for possible complications, especially graft rejection.