title: MR imaging of brachial plexopathy in breast cancer patients without palpable recurrence.
abstract: OBJECTIVE
  To investigate the role of MR imaging in detecting brachial plexus (BP) abnormalities in breast cancer patients with plexopathy but without palpable masses.
  
  
  METHODS
  MR imaging of the BP was performed on 26 breast cancer patients with brachial plexopathy without palpable regional masses, using 0.5 T and 1.5 T imaging systems. Findings were correlated with the clinical diagnoses.
  
  
  METHODS
  Twenty-six patients with brachial plexopathy and history of breast cancer were enrolled in the study. All patients presented with plexopathy symptoms. Fourteen patients were positive and 12 patients were indeterminate for BP metastasis according to clinical criteria.
  
  
  CONCLUSIONS
  MR imaging demonstrated masses involving the BP representing metastases in two patients. Nine patients had other regional abnormalities with a normal brachial plexus. It is concluded that MR imaging is useful in the assessment and direction of therapy of brachial plexopathy in breast cancer patients by detecting both metastases to the BP as well as other abnormalities, unrelated to the BP, which may explain the patient's symptoms.
authors.affiliation: Department of Radiology, St. Paul's Hospital, Vancouver, BC, Canada.
authors.forename: S S
authors.initials: SS
authors.lastname: Lingawi
authors.forename: J H
authors.initials: JH
authors.lastname: Bilbey
authors.forename: P L
authors.initials: PL
authors.lastname: Munk
authors.forename: P Y
authors.initials: PY
authors.lastname: Poon
authors.forename: B M
authors.initials: BM
authors.lastname: Allan
authors.forename: I A
authors.initials: IA
authors.lastname: Olivotto
authors.forename: L O
authors.initials: LO
authors.lastname: Marchinkow
mesh_terms: D000328:Adult; D000368:Aged; D001917:Brachial Plexus / Q000473:pathology*; D020968:Brachial Plexus Neuritis / Q000175:diagnosis* / Q000209:etiology; D001943:Breast Neoplasms / Q000150:complications* / Q000175:diagnosis; D003937:Diagnosis, Differential; D005260:Female; D005500:Follow-Up Studies; D006801:Humans; D008279:Magnetic Resonance Imaging; D008875:Middle Aged; D009364:Neoplasm Recurrence, Local / Q000175:diagnosis; D010173:Palpation