title: Cannonball metastases with favourable prognosis.
abstract: BACKGROUND
  Secondary 'cannonball' metastases to the lung are frequent and usually associated with disseminated malignancy and poor prognosis.
  
  
  OBJECTIVE
  To report the case of a patient with metastatic pulmonary endometrial stromal sarcoma who had a previous hysterectomy for benign uterine fibroids and no past history of malignancy.
  
  
  RESULTS
  A 70-year-old female presented with cannonball metastases in her lung. Four years previously she had a hysterectomy for 'fibroids'. Review of the original histology revealed endometrial stromal sarcoma, similar to the lung metastasis. She currently has a good prognosis.
  
  
  CONCLUSIONS
  A patient with 'cannonball' metastases can have a favourable prognosis. A female patient with a previous hysterectomy for uterine fibroids, should be considered to have metastatic sarcoma until proven otherwise.
authors.affiliation: Department of Histopathology, St. James's Hospital and Trinity College Medical School, Dublin.
authors.forename: R
authors.initials: R
authors.lastname: Flavin
authors.forename: S
authors.initials: S
authors.lastname: Finn
authors.forename: A
authors.initials: A
authors.lastname: McErlean
authors.forename: P
authors.initials: P
authors.lastname: Smyth
authors.forename: J
authors.initials: J
authors.lastname: Meaney
authors.forename: F
authors.initials: F
authors.lastname: O'Connell
authors.forename: J
authors.initials: J
authors.lastname: Kellett
authors.forename: E
authors.initials: E
authors.lastname: McGovern
authors.forename: E
authors.initials: E
authors.lastname: Gaffney
mesh_terms: D000368:Aged; D003937:Diagnosis, Differential; D016889:Endometrial Neoplasms / Q000473:pathology* / Q000601:surgery; D005260:Female; D006801:Humans; D007044:Hysterectomy; D007889:Leiomyoma / Q000473:pathology / Q000601:surgery; D008175:Lung Neoplasms / Q000188:drug therapy / Q000556:secondary*; D019290:Megestrol Acetate / Q000627:therapeutic use; D009362:Neoplasm Metastasis; D011379:Prognosis; D012509:Sarcoma; D018203:Sarcoma, Endometrial Stromal / Q000473:pathology* / Q000556:secondary*
chemical_list: D019290:Megestrol Acetate