title: Carcinoid metastatic to breast diagnosed by fine-needle aspiration biopsy.
abstract: We report a patient in whom fine-needle aspiration biopsy of a breast mass, clinically suspected to be a mammary adenocarcinoma, established the diagnosis of a carcinoid metastatic to breast. The aspirate smears resembled a primary breast carcinoma; however, subtle cytomorphologic differences were present. Ultrastructural and immunohistochemical studies of the aspirate material confirmed the diagnosis of metastatic carcinoid.
authors: Department of Pathology, University of Texas, M. D. Anderson Hospital and Tumor Institute, Houston 77030.
authors: G
authors: G
authors: Landon
authors: N
authors: N
authors: Sneige
authors: N G
authors: NG
authors: Ordóñez
authors: B
authors: B
authors: Mackay
mesh_terms: D001707:Biopsy, Needle; D001943:Breast Neoplasms / Q000473:pathology / Q000556:secondary*; D002276:Carcinoid Tumor / Q000473:pathology*; D005260:Female; D006801:Humans; D007078:Ileal Neoplasms / Q000473:pathology*; D008113:Liver Neoplasms / Q000556:secondary; D008875:Middle Aged