title: Benign glandular inclusions a rare cause of a false positive sentinel node.
abstract: An 84-year-old female underwent a wire-guided lumpectomy and sentinel lymph node biopsy. Two sentinel nodes were identified and sent for immediate pathological evaluation. One of the nodes was reported as "glandular epithelium consistent with metastatic adenocarcinoma." Permanent sections of the sentinel node initially considered positive revealed glandular structures primarily within the fibrous capsule of the involved lymph node. These glands were lined by tall columnar epithelial cells, which had cilia on the luminal surface and did not show significant cytologic atypia. The limitations of intra-operative evaluation of sentinel nodes make differentiation of uncommon pathology difficult. A conservative approach should be taken with these lesions as permanent sections will often elucidate the diagnosis.
authors.affiliation: Section of Breast Surgical Oncology, Indiana University, Indianapolis, Indiana, USA.
authors.forename: Laura E
authors.initials: LE
authors.lastname: Norton
authors.forename: Ian K
authors.initials: IK
authors.lastname: Komenaka
authors.forename: Robert E
authors.initials: RE
authors.lastname: Emerson
authors.forename: Colleen
authors.initials: C
authors.lastname: Murphy
authors.forename: Sunil
authors.initials: S
authors.lastname: Badve
mesh_terms: D000369:Aged, 80 and over; D001365:Axilla; D001943:Breast Neoplasms / Q000473:pathology* / Q000601:surgery; D018270:Carcinoma, Ductal, Breast / Q000473:pathology*; D005189:False Positive Reactions; D005260:Female; D005629:Frozen Sections; D006801:Humans; D002479:Inclusion Bodies; D007432:Intraoperative Period; D008198:Lymph Nodes / Q000473:pathology*; D042361:Mammary Glands, Human / Q000473:pathology*; D021701:Sentinel Lymph Node Biopsy