Medical image of the week: arachnoid cyst

• Main Authors: Erisman M, Parbtani R, Jaffer F
• Format: Article
• Language: English
• Published: Arizona Thoracic Society 2016-10-01
• Series: Southwest Journal of Pulmonary and Critical Care
• Subjects: MRI; arachnoid; cyst; diagnosis; head; lithium; symptoms; treatment; toxicity; endoscopic surgery
• Online Access: http://www.swjpcc.com/imaging/2016/10/19/medical-image-of-the-week-arachnoid-cyst.html

No abstract available. Article truncated at 150 words. A 40 year-old woman with adult attention deficit hyperactive and bipolar 1 disorder presents with an altered mental status. Per her family, she had been non-verbal, with reduced oral intake, confusion and sedated for the past three days. Per her husband, she had episodes of diarrhea and abdominal discomfort. She was on multiple medications including ramelteon 8mg nightly, atomoxetine 40mg daily, hydroxyzine 25mg twice daily, bupropion 75mg twice daily and risperidone 2mg daily with recent addition of lithium ER 1200mg/daily started one month prior to presentation with unknown adherence. Upon arrival, vital signs were within normal limits. Physical exam revealed an overweight Caucasian woman with a significant coarse tremor visible at rest, restlessness and diaphoresis. Neurological examination was limited by patient hesitancy, however, it did not demonstrate focal deficits except for altered consciousness with Glasgow Coma Scale of 10. Notable laboratory findings were Na+ 134 mEq/L, K+ 3.2 mEq/L, and ...