title: Technetium and blood extravasation before gammagraphy: a case report.
abstract: BACKGROUND
  An 80-year-old woman presented with an abrupt onset of asymptomatic black-to-purple discoloration of her right limb that appeared just before a thyroid gammagraphy. No antecedent of trauma was found.
  
  
  METHODS
  On questioning, patient admitted she did not cooperate during intravenous administration of Tc-99m-pertechnetate. Based on the abrupt onset of lesions and the absence of cooperation during intravenous administration of radiotracer, a suspect diagnosis of technetium and blood extravasation was made. This entity was confirmed in basis of evolution, with a spontaneous resolution of lesions within the next 15 days with no complications.
  
  
  CONCLUSIONS
  Patient and physicians must be reassured because of the non-vesicant property of technetium. Recovery of this entity is spontaneous, and no treatment is needed.
authors.affiliation: Dermatology Service, Ramon y Cajal Hospital, University of Alcala, Madrid, Spain. sergiovano@yahoo.es.
authors.forename: Sergio
authors.initials: S
authors.lastname: Vano-Galvan
authors.forename: Cristina
authors.initials: C
authors.lastname: Rodriguez-Rey
authors.forename: Eliseo
authors.initials: E
authors.lastname: Vano-Galvan
authors.forename: Pedro
authors.initials: P
authors.lastname: Jaén