title: Contralateral axillary sentinel lymph node drainage in breast cancer: a case report.
abstract: BACKGROUND
  Since the introduction of sentinel node (SN) mapping in breast cancer, extra-axillary lymph node sites of breast tumor drainage are discovered in about one-quarter of cases, especially after intraparenchymal injection. In most such cases, an ipsilateral axillary SN is associated with an extra-axillary SN. Non visualization of ipsilateral axillary SN and extra-axillary SN drainage are often associated with an increased risk of axillary involvement.
  
  
  METHODS
  We report a case of contralateral axillary SN drainage on lymphoscintigraphy in a breast cancer patient with a history of bilateral reduction mammoplasty and no ipsilateral axillary lymph node involvement.
authors.affiliation: Department of Gynecology and Breast Cancers, Hôpital Tenon, Assistance Publique des Hôpitaux de Paris, Paris, France. emmanuel.barranger@tnn.ap-hop-paris.fr
authors.forename: Emmanuel
authors.initials: E
authors.lastname: Barranger
authors.forename: Françoise
authors.initials: F
authors.lastname: Montravers
authors.forename: Khaldoun
authors.initials: K
authors.lastname: Kerrou
authors.forename: Olivier
authors.initials: O
authors.lastname: Marpeau
authors.forename: Irena
authors.initials: I
authors.lastname: Raileanu
authors.forename: Martine
authors.initials: M
authors.lastname: Antoine
authors.forename: Jean Noel
authors.initials: JN
authors.lastname: Talbot
authors.forename: Serge
authors.initials: S
authors.lastname: Uzan
mesh_terms: D000368:Aged; D001365:Axilla; D001943:Breast Neoplasms / Q000473:pathology / Q000601:surgery*; D018270:Carcinoma, Ductal, Breast / Q000473:pathology / Q000601:surgery*; D004322:Drainage; D005260:Female; D006801:Humans; D008198:Lymph Nodes / Q000000981:diagnostic imaging / Q000473:pathology*; D008207:Lymphatic Metastasis; D011877:Radionuclide Imaging; D019275:Radiopharmaceuticals; D021701:Sentinel Lymph Node Biopsy; D013671:Technetium Tc 99m Sulfur Colloid
chemical_list: D019275:Radiopharmaceuticals; D013671:Technetium Tc 99m Sulfur Colloid