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Moya moya disease is an angiogenic disease characterized by the narrowing of the distal internal carotid artery extending to the proximal segments of the middle and anterior cerebral arteries, inducing collateral vessels formation. These vessels come from the collateral parenchymal vessels, the perforating vessels, leptomeningeal vessels and other transdural anastomoses. These collateral vessels have a characteristic appearance on angiography, forming a cloud of smoke: net-like moyamoya. Its etiology is still poorly understood. Moyamoya disease accounts for 10-15% of the causes of stroke, with 2 age peaks at which its occurrence is more frequent: children around 5 years old and adults around 40 years old. Its evolution can be slow with intermittent symptoms or fulminant with fast neurological deterioration. The current data show the role of surgery as the gold standard for the treatment of moyamoya syndrome, in particular in patients with progressive and recurrent symptoms. [ABSTRACT FROM AUTHOR]

The article provides an online link to a medical article located at http://www.panafrican-med-journal.com/content/article/23/84/full/ by authors Youssef Omor and Nabil Moatassim Billah.

Radiation-induced ocular complications are common during radiation therapy for cancers of the head and neck. Some are mild and transient, others can be very serious jeopardizing visual function. This rare and unusual case study aims to highlight the different clinical manifestations and the ocular but especially corneal complications associated with radiation therapy as well as the diagnostic and therapeutic procedures of a corneal perforation which is a serious complication of radiation therapy., Competing Interests: Les auteurs ne déclarent aucun conflit d'intérêts.