title: Inferior gluteal artery pseudoaneurysm related to intramuscular injection.
abstract: BACKGROUND
  Gluteal artery pseudoaneurysms are rare, yet the most common in cases involving the superior gluteal artery. Pseudoaneurysms of the inferior gluteal artery are uncommon and are often related to blunt or penetrating trauma, infections and fractures of the pelvis.
  
  
  METHODS
  The authors present a case of pseudoaneurysm of the inferior gluteal artery related to an iatrogenic injury due to intramuscular injection of medication, which was treated with selective embolization of the artery during angiography.
  
  
  CONCLUSIONS
  The most common manifestation of an inferior gluteal artery pseudoaneurysm is the presence of a painful mass in the buttock that may or may not be associated with neurological symptoms due to compression of the sciatic nerve. Ultrasound with color Doppler and computerized tomography with multi-detectors are useful non-invasive tools for diagnosis. However, both diagnosis and therapy are facilitated by catheter angiography.
  
  
  CONCLUSIONS
  This case cautions that although pseudoaneurysms are rare, pseudoaneurysms of the inferior gluteal artery require a high index of suspicion and careful physical examination by the physician in order to avoid misdiagnosis. It also illustrates the usefulness of a minimally invasive modality for treatment of these lesions.
authors.affiliation: School of Medicine of Vale do São Francisco Federal University, Av. José de Sá Maniçoba, s/n, Centro, Petrolina 56304917, PE, Brazil.
authors.forename: Paulo Fernandes
authors.initials: PF
authors.lastname: Saad
authors.affiliation: School of Medicine of Vale do São Francisco Federal University, Av. José de Sá Maniçoba, s/n, Centro, Petrolina 56304917, PE, Brazil. Electronic address: karen.ruggeri@univasf.edu.br.
authors.forename: Karen Ruggeri
authors.initials: KR
authors.lastname: Saad
authors.affiliation: School of Medicine of Vale do São Francisco Federal University, Av. José de Sá Maniçoba, s/n, Centro, Petrolina 56304917, PE, Brazil.
authors.forename: Dinani Matoso Fialho de Oliveira
authors.initials: DM
authors.lastname: Armstrong
authors.affiliation: School of Medicine of Vale do São Francisco Federal University, Av. José de Sá Maniçoba, s/n, Centro, Petrolina 56304917, PE, Brazil.
authors.forename: Bruno Leonardo de Freitas
authors.initials: BL
authors.lastname: Soares
authors.affiliation: School of Medicine of Vale do São Francisco Federal University, Av. José de Sá Maniçoba, s/n, Centro, Petrolina 56304917, PE, Brazil.
authors.forename: Paulo Henrique Freitas
authors.initials: PH
authors.lastname: de Almeida
authors.affiliation: Holy House Medical Sciences Faculty of São Paulo, Rua Dr. Cesário Motta Jr., 61, São Paulo 01221020, SP, Brazil.
authors.forename: Álvaro
authors.initials: Á
authors.lastname: Razuk Filho
keywords: Buttocks; Endovascular procedures; Pseudoaneurysm