title: [Association of aneurysm with pituitary adenoma].
abstract: OBJECTIVE
  The association between intracranial aneurysm and pituitary adenomas has not been definitely established, with some authors reporting an incidence of 7.4%. The factors have not been defined; 97% of aneurysms are on anterior circulation. We describe three patients who demonstrate this association.
  
  
  METHODS
  Patient 1 is a 38-year-old female with a diagnosis of pituitary adenoma with acromegaly. This patient was operated on with a right frontotemporal approach, placement of clip on carotid ophthalmic area and resection of adenoma. Patient 2 is a 58-year-old male with a diagnosis of macroadenoma and aneurysm of anterior communicating artery and was operated on using a right frontotemporal approach. Patient 3 is a 23-year-old male with macroprolactinoma and we used a right frontotemporal approach with placement of clip on choroidal segment and resection of the adenoma.
  
  
  CONCLUSIONS
  There were three patients who demonstrated the association of aneurysm and adenoma. All aneurysms were of anterior circulation with simultaneous treatment of aneurysm and the adenoma.
  
  
  CONCLUSIONS
  We have not yet established incidence or prevalence.
authors.affiliation: Servicio de Neurocirugía, Hospital de Especialidades, Centro Médico Nacional Siglo XXI, IMSS.
authors.forename: Fabrizio
authors.initials: F
authors.lastname: Cohn-Zurita
authors.forename: José Manuel
authors.initials: JM
authors.lastname: Sandoval-Rivera
authors.forename: Félix
authors.initials: F
authors.lastname: Hernández-Hernández
mesh_terms: D000236:Adenoma / Q000150:complications* / Q000175:diagnosis; D000328:Adult; D005260:Female; D006801:Humans; D002532:Intracranial Aneurysm / Q000150:complications* / Q000175:diagnosis / Q000601:surgery; D018810:Magnetic Resonance Angiography; D008297:Male; D008875:Middle Aged; D019635:Neurosurgical Procedures; D010911:Pituitary Neoplasms / Q000150:complications* / Q000175:diagnosis; D016896:Treatment Outcome