title: [Spindle cell carcinoma of the breast with neuroendocrine differentiation. A rare entity simulating a benign tumor].
abstract: We report a case of spindle cell carcinoma of the breast with neuroendocrine and mucinous differentiation. Histological diagnosis can be difficult as macroscopic appearance and low grade cytologic features suggest a benign tumor. Differential diagnosis with a fusiform benign tumor of myoepithelial origin should be discussed. Immunohistochemistry is essential to confirm the diagnosis.
authors.affiliation: Service d'Anatomie et Cytologie Pathologiques, Hôpital Beaujon, Clichy.
authors.forename: E
authors.initials: E
authors.lastname: Lefort
authors.forename: O
authors.initials: O
authors.lastname: Groussard
authors.forename: J
authors.initials: J
authors.lastname: Bouquet de la Jolinière
authors.forename: C
authors.initials: C
authors.lastname: Degott
authors.forename: B
authors.initials: B
authors.lastname: Zafrani
mesh_terms: D000368:Aged; D001943:Breast Neoplasms / Q000473:pathology*; D018278:Carcinoma, Neuroendocrine / Q000473:pathology*; D002454:Cell Differentiation / Q000502:physiology; D003937:Diagnosis, Differential; D005260:Female; D006801:Humans; D007150:Immunohistochemistry