title: Facial Drooping, Aphasia, and an Incidental Lung Mass in a Nonsmoker.
abstract: BACKGROUND
  Atrial fibrillation and atrial flutter are atrial tachycardias associated with embolic strokes. To date, there have only been a few reports highlighting the incidence of these atrial tachycardias due to mechanical compression of myocardial structures and the pulmonary vasculature in certain mediastinal masses and cysts.
  
  
  METHODS
  We present a case of a 75-year-old gentleman who is a nonsmoker with a history of hypertension who presents with an acute embolic stroke due to atrial flutter likely from mechanical compression from an underlying squamous cell carcinoma of the lung.
  
  
  CONCLUSIONS
  This case represents, to the best of our knowledge, a rare case of squamous cell carcinoma of the lung in a nonsmoker likely leading to mechanical compression and a resultant atrial tachycardia with an embolic stroke.
authors: 1 Department of Medicine, University of Massachusetts Medical School, Worcester, MA, USA.
authors: Justin K
authors: JK
authors: Lui
authors: 2 Department of Radiology, University of Massachusetts Medical School, Worcester, MA, USA.
authors: Lacey J
authors: LJ
authors: McIntosh
authors: 1 Department of Medicine, University of Massachusetts Medical School, Worcester, MA, USA.
authors: Jorge
authors: J
authors: Escobar Valle
authors: 3 Department of Pathology, University of Massachusetts Medical School, Worcester, MA, USA.
authors: Thomas
authors: T
authors: Stockl
authors: 1 Department of Medicine, University of Massachusetts Medical School, Worcester, MA, USA.|4 Division of Pulmonary Medicine, University of Massachusetts Medical School, Worcester, MA, USA.
authors: Stephen
authors: S
authors: Summers
mesh_terms: D000368:Aged; D000395:Air Pollutants, Occupational / Q000009:adverse effects*; D000925:Anticoagulants / Q000008:administration & dosage; D001037:Aphasia / Q000209:etiology; D001282:Atrial Flutter / Q000209:etiology / Q000473:pathology*; D002294:Carcinoma, Squamous Cell / Q000150:complications / Q000175:diagnosis* / Q000503:physiopathology; D004554:Electric Countershock / Q000379:methods; D017984:Enoxaparin / Q000008:administration & dosage; D005158:Facial Paralysis / Q000209:etiology; D006801:Humans; D007279:Injections, Subcutaneous; D008175:Lung Neoplasms / Q000150:complications / Q000175:diagnosis* / Q000503:physiopathology; D008297:Male; D016273:Occupational Exposure / Q000009:adverse effects*; D020521:Stroke / Q000175:diagnosis* / Q000503:physiopathology; D014028:Tobacco Smoke Pollution / Q000009:adverse effects*; D016896:Treatment Outcome
chemical_list: D000395:Air Pollutants, Occupational; D000925:Anticoagulants; D017984:Enoxaparin; D014028:Tobacco Smoke Pollution
keywords: atrial flutter; embolic stroke; squamous cell lung carcinoma