# Faciobrachial Stroke as the Initial Presentation of Moyamoya in a Pediatric Patient Precipitated by Mycoplasma pneumoniae Pneumonia: A Case Report and Comprehensive Review of the Literature

## TL;DR

A 10-year-old girl had a stroke caused by moyamoya disease, triggered by a Mycoplasma pneumoniae infection, highlighting a rare pediatric case.

## Contribution

This case report presents a rare pediatric moyamoya stroke precipitated by Mycoplasma pneumoniae pneumonia.

## Key findings

- A 10-year-old girl presented with faciobrachial monoparesis due to moyamoya disease.
- Her moyamoya-related stroke was triggered by Mycoplasma pneumoniae pneumonia.
- Angiography confirmed bilateral moyamoya disease in the patient.

## Abstract

Moyamoya disease is characterized by progressive stenosis of the distal end of the internal carotid arteries with the formation of extensive collaterals. Moyamoya is a common cause of pediatric stroke, but data regarding pediatric-specific etio-clinical profiles and topological co-relation are sparse.

We present a rare case of a 10-year-old girl with left faciobrachial monoparesis due to an acute ischemic stroke in the right subcortical frontoparietal region, with angiography revealing bilateral moyamoya disease. This unique hemodynamic stroke of moyamoya was precipitated by Mycoplasma pneumoniae pneumonia.