title: [Phyllodes tumor and pregnancy. A report of a case].
abstract: Phyllodes tumor is a rare breast fibroepithelial neoplasm of the breast, predominant in females (0.3 to 0.5%). Few cases have been described in males. Phyllodes tumor during pregnancy grows fast and its size is relatively big. These tumors can be classified as benign, malignant or neighboring. A 32-year-old patient at 23.4 week of gestation was admitted in the National Institute of Perinatology with a rapidly growing mass in the right breast; diagnosis confirmed by ultrasound study reporting echoic images on right breast, 10 x 10 cm the greatest and 3x3 cm the smallest. A simple mastectomy was performed at the 26.6 week of gestation on the right breast. A possible phyllodes tumour in the right breast was observed during surgery, weight 9.6 pounds, with partial infiltration to major pectoral muscle. Pathology reported a benign phyllodes tumor in the right breast, with surgical borders free of tumor. Phyllodes tumor is rare and can occur during pregnancy. It is unknown if the tumor is hormone-dependent. The growth of a tumor on a subsequent pregnancy is not necessarily associated with recurrency or with a new disorder on the patient, who has had a complete excision.
authors.affiliation: Departamento de Anatomía Patológica, Instituto Nacional de Perinatología, México, DF.
authors.forename: C
authors.initials: C
authors.lastname: Aranda
authors.forename: M
authors.initials: M
authors.lastname: Sotelo
authors.forename: A
authors.initials: A
authors.lastname: Torres
authors.forename: M
authors.initials: M
authors.lastname: Zárate
mesh_terms: D000328:Adult; D001943:Breast Neoplasms / Q000175:diagnosis / Q000601:surgery; D005260:Female; D006801:Humans; D003557:Phyllodes Tumor / Q000175:diagnosis / Q000601:surgery; D011247:Pregnancy; D011252:Pregnancy Complications, Neoplastic / Q000175:diagnosis / Q000601:surgery