Natural history of pediatric morphine leukoencephalopathy on CT and MRI.

An increased awareness of opioids and the imaging appearance in opioid overdose-related leukoencephalopathy has rapidly become crucial with respect to its identification by emergency radiologists. It is a potentially life-threatening condition and is associated with devastating neurological outcomes. Thus, early diagnosis and management are paramount. We report a rare case of toxic leukoencephalopathy in a 20-month-old male patient secondary to morphine overdose in the outpatient setting following discharge from uncomplicated urethroplasty. Although pediatric toxic leukoencephalopathy has been reported previously in the literature, our case report is unique as it involves morphine, a less commonly used opioid in the outpatient setting. Moreover, we have provided brain computed tomography and magnetic resonance imaging and highlighted findings in the acute and chronic stages of the disease trajectory. This case report highlights the importance for radiologists, especially those involved in emergency care, to have a high index of suspicion for toxic leukoencephalopathy, a potentially devastating but treatable condition.