Mineralizing angiopathy as a rare cause of pediatric stroke: review and report of two cases

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Abstract
In the Indian subcontinent, traumatic brain injury stands as the leading cause of pediatric stroke, whereas in Europe, it is considered a rare or potentially underdiagnosed factor. The etiology of post-traumatic stroke is unknown, although it has been associated with the presence of calcification in the lenticulostriate arteries, a condition known as “mineralizing angiopathy.” The theory suggests that calcified lenticulostriate vessels in a brain with inadequate myelination could have an increased vulnerability to mechanical injuries, which may result in their obstruction. This ischemic stroke associated with mineralizing angiopathy usually occurs after mild traumatic brain injury, with an asymptomatic interval following the trauma. The typical age of presentation is between 6 and 24 months. Children with mineralizing lenticulostriate vasculopathy generally experience a favorable outcome after stroke, with the majority achieving complete or nearly complete recovery of their motor functions. Despite aspirin treatment, a small proportion of children may still face stroke recurrence following repeat head trauma. We present the cases of two male patients with clinical features compatible with childhood stroke after a mild traumatic brain injury.

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