title: [Breast myoepithelioma. Report of a new case and review of literature].
abstract: Breast myoepithelioma is rare. A case is reported of a 71 year old female. The tumor was clinically, radiologically and macroscopically demarcated. Diagnosis was based on histological and immunohistochemical studies. At the time of diagnosis the tumor was composed of myoepithelial cells with few cellular atypias and a low mitotic activity. Tumor cells expressed vimentin, actin, S100 protein and cytokeratin. No local or distant metastases were found. The patient had been treated initially with a large excision of tumor. Local recurrences detected 1 year after initial surgery and showed a similar morphology and immunoreactivity with higher mitotic activity. Mastectomy with axillary dissection was performed. No recurrences and no distant metastases detected 2 years later. Myoepithelial tumors generally considered as benign or low-grade lesion can give rise to a wide range of clinical evolution.
authors.affiliation: Service de Chirurgie Carcinologique, Institut Salah Azaiez.
authors.forename: Moez
authors.initials: M
authors.lastname: Kdous
authors.forename: Rim
authors.initials: R
authors.lastname: Hachicha
authors.forename: Amor
authors.initials: A
authors.lastname: Gamoudi
authors.forename: Hamouda
authors.initials: H
authors.lastname: Boussen
authors.forename: Farouk
authors.initials: F
authors.lastname: Benna
authors.forename: Monia
authors.initials: M
authors.lastname: Hechiche
authors.forename: Ibtissem
authors.initials: I
authors.lastname: Attia
authors.forename: Khaled
authors.initials: K
authors.lastname: Rahal
mesh_terms: D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D001940:Breast / Q000473:pathology; D001943:Breast Neoplasms / Q000175:diagnosis / Q000000981:diagnostic imaging / Q000473:pathology / Q000601:surgery; D005260:Female; D005500:Follow-Up Studies; D006801:Humans; D007150:Immunohistochemistry; D008197:Lymph Node Excision; D008207:Lymphatic Metastasis; D008327:Mammography; D008408:Mastectomy; D008875:Middle Aged; D009208:Myoepithelioma / Q000175:diagnosis / Q000000981:diagnostic imaging / Q000473:pathology / Q000601:surgery; D009364:Neoplasm Recurrence, Local; D013997:Time Factors
vernacular_title: Le myoepitheliome du sein. A propos d'un nouveau cas et revue de la littérature.