title: Carcinoid tumor of the coccyx: case report and review of the literature.
abstract: METHODS
  Report of a patient with a carcinoid tumor of the coccyx.
  
  
  OBJECTIVE
  To describe the clinical presentation, diagnosis, and treatment of a patient with a carcinoid tumor of the coccyx and to review the relevant medical literature in English.
  
  
  BACKGROUND
  No reports of a carcinoid tumor of the coccyx were found in the literature. Seven reports of carcinoid of the sacrum are described.
  
  
  METHODS
  Clinical history, magnetic resonance imaging studies, and light and electronic microscope micrographs are reviewed.
  
  
  RESULTS
  A coccygeal mass was detected during evaluation of coccygodynia in a 40-year-old woman. Four years after extended coccygectomy, there are no signs of local tumor recurrence.
  
  
  CONCLUSIONS
  Carcinoid tumor of the coccyx is extremely rare. An extended coccygectomy may lead to a cure or at least to a prolonged disease-free interval.
authors.affiliation: Department of Orthopedics, Tel Aviv University, Tel Aviv, Israel. ekrasin@tasmc.health.gov.il
authors.forename: E
authors.initials: E
authors.lastname: Krasin
authors.forename: A
authors.initials: A
authors.lastname: Nirkin
authors.forename: J
authors.initials: J
authors.lastname: Issakov
authors.forename: M
authors.initials: M
authors.lastname: Rabau
authors.forename: I
authors.initials: I
authors.lastname: Meller
mesh_terms: D000328:Adult; D014408:Biomarkers, Tumor / Q000032:analysis; D002276:Carcinoid Tumor / Q000737:chemistry / Q000473:pathology* / Q000601:surgery; D003050:Coccyx / Q000473:pathology* / Q000601:surgery; D003594:Cytoplasmic Granules / Q000648:ultrastructure; D005260:Female; D006801:Humans; D007150:Immunohistochemistry; D008279:Magnetic Resonance Imaging; D008854:Microscopy, Electron; D009490:Neurosecretory Systems / Q000648:ultrastructure; D013125:Spinal Neoplasms / Q000737:chemistry / Q000473:pathology* / Q000601:surgery; D014057:Tomography, X-Ray Computed
chemical_list: D014408:Biomarkers, Tumor