title: Importance of lymphatic mapping in ductal carcinoma in situ (DCIS): why map DCIS?
abstract: The appropriateness of sentinel lymph node biopsy in the management of patients with biopsy diagnoses of ductal carcinoma in situ (DCIS) or DCIS with microinvasion (DCISM) has not been established. Three hundred forty-one patients presented with a biopsy diagnosis of DCIS or DCISM. Two hundred forty (70%) underwent sentinel node biopsy at their definitive procedure. All clinical and pathologic data were collected prospectively. Of 224 patients with a biopsy diagnosis of DCIS 23 (10%) were upstaged to infiltrating ductal carcinoma (IDC) at their definitive therapy and of 16 patients with a biopsy diagnosis of DCISM seven (44%) were upstaged to IDC. Excisional biopsies were no more sensitive for detecting IDC than was core biopsy. Lymph node metastases were detected in 26 of 195 (13%) patients with a definitive diagnosis of DCIS, in three of 15 (20%) with a definitive diagnosis of DCISM, and in eight of 30 (27%) with a definitive diagnosis of IDC. Sentinel lymph node biopsy is a valuable tool in the treatment of patients with DCIS and DCISM and is particularly needed in those undergoing mastectomy. No "high-risk" group of patients can be identified for selective sentinel lymph node biopsy.
authors.affiliation: Department of Surgery, University of South Florida College of Medicine, Tampa, USA.
authors.forename: C E
authors.initials: CE
authors.lastname: Cox
authors.forename: K
authors.initials: K
authors.lastname: Nguyen
authors.forename: R J
authors.initials: RJ
authors.lastname: Gray
authors.forename: C
authors.initials: C
authors.lastname: Salud
authors.forename: N N
authors.initials: NN
authors.lastname: Ku
authors.forename: E
authors.initials: E
authors.lastname: Dupont
authors.forename: L
authors.initials: L
authors.lastname: Hutson
authors.forename: E
authors.initials: E
authors.lastname: Peltz
authors.forename: G
authors.initials: G
authors.lastname: Whitehead
authors.forename: D
authors.initials: D
authors.lastname: Reintgen
authors.forename: A
authors.initials: A
authors.lastname: Cantor
mesh_terms: D001943:Breast Neoplasms / Q000473:pathology* / Q000601:surgery; D018270:Carcinoma, Ductal, Breast / Q000473:pathology; D002285:Carcinoma, Intraductal, Noninfiltrating / Q000473:pathology* / Q000601:surgery; D005260:Female; D006801:Humans; D008197:Lymph Node Excision / Q000191:economics; D008207:Lymphatic Metastasis; D008408:Mastectomy / Q000191:economics; D015412:Mastectomy, Segmental / Q000191:economics; D009361:Neoplasm Invasiveness / Q000473:pathology; D011446:Prospective Studies; D012307:Risk Factors; D021701:Sentinel Lymph Node Biopsy / Q000191:economics; D013194:Staining and Labeling