title: A rectangular dermatosis of the left back.
abstract: BACKGROUND
  Cardioversion and defibrillation have become widely used techniques aimed at restoring normal sinus rhythm in patients with cardiac arrhythmias. Following the procedure, cutaneous lesions are often seen at the site of the electrodes, but little has been reported regarding the evolution of such lesions over time.
  
  
  METHODS
  Two patients presented with unusual, well-defined rectangular eruptions on the left back, and both reported a history of having undergone electrical cardioversion or defibrillation several years previously. The histologic characteristics of each lesion were distinct, and the management was symptomatic, with most of the relief coming from the recognition that the eruption was actually a self-limited manifestation of cardioversion and defibrillation.
  
  
  CONCLUSIONS
  The clinical cases and corresponding histologic findings represent possible long-term sequelae of electrical cardioversion or defibrillation. They are presented in order to enhance the diagnostic acumen of dermatologists and to avoid potential misdiagnosis.
authors.affiliation: Department of Dermatology, Yale University School of Medicine, PO Box 208059, 333 Cedar St, New Haven, CT 06520, USA. brittany.craiglow@yale.edu
authors.forename: Brittany
authors.initials: B
authors.lastname: Craiglow
authors.forename: Jinah
authors.initials: J
authors.lastname: Kim
authors.forename: Kalman
authors.initials: K
authors.lastname: Watsky
authors.forename: Peter
authors.initials: P
authors.lastname: Heald
mesh_terms: D000368:Aged; D001281:Atrial Fibrillation / Q000628:therapy; D001415:Back; D047548:Defibrillators / Q000009:adverse effects*; D004554:Electric Countershock / Q000009:adverse effects*; D006801:Humans; D008297:Male; D008875:Middle Aged; D012871:Skin Diseases / Q000209:etiology* / Q000473:pathology* / Q000628:therapy; D013997:Time Factors; D014693:Ventricular Fibrillation / Q000628:therapy