title: Primary angioleiomyoma in the sellar region: a case report and literature review.
abstract: OBJECTIVE
  Angioleiomyoma (vascular leiomyomas, angiomyoma) is a rare, benign soft tissue tumor which consists of a mixture of well-differentiated smooth muscle cells and thick-walled vessels. Here we report a case of angioleiomyoma in the sellar region, which is the first case report of angioleiomyoma at this anatomical location.
  
  
  METHODS
  A 53-year-old man was admitted with a medical history of three months episodic headache and one month visual deterioration, both of which progressed gradually. The neurological examination showed nothing remarkable except a slightly decreased adrenocorticotrophic hormone (ACTH) level. Preoperative magnetic resonance imaging revealed a pituitary apoplexy. Gross total resection of the tumor was then performed.
  
  
  RESULTS
  Histological and immunohistochemical studies showed a typical microscopic appearance of an angioleiomyoma present in a rather uncommon place. The pertinent literature regarding the features of this tumor was reviewed and discussed.
  
  
  CONCLUSIONS
  Intracranial angioleiomyoma is a benign soft tissue tumor with excellent prognosis. Early diagnosis of this tumor is difficult.
authors.affiliation: Department of Pathology, Xijing Hospital, Fourth Military Medical University, Xi'an, PR China.
authors.forename: Y
authors.initials: Y
authors.lastname: Xu
authors.forename: Y
authors.initials: Y
authors.lastname: Jing
authors.forename: S
authors.initials: S
authors.lastname: Ma
authors.forename: F
authors.initials: F
authors.lastname: Ma
authors.forename: Y
authors.initials: Y
authors.lastname: Wang
authors.forename: W
authors.initials: W
authors.lastname: Ma
authors.forename: Q
authors.initials: Q
authors.lastname: Li
mesh_terms: D000324:Adrenocorticotropic Hormone / Q000378:metabolism; D018229:Angiomyoma / Q000175:diagnosis / Q000378:metabolism / Q000473:pathology*; D001921:Brain / Q000473:pathology* / Q000601:surgery; D001932:Brain Neoplasms / Q000175:diagnosis / Q000378:metabolism / Q000473:pathology*; D042241:Early Diagnosis; D006801:Humans; D008279:Magnetic Resonance Imaging; D008297:Male; D008875:Middle Aged; D009460:Neurologic Examination; D011379:Prognosis
chemical_list: D000324:Adrenocorticotropic Hormone