title: B-cell-type malignant lymphoma with placental involvement.
abstract: We present here a case of B-cell-type mediastinal malignant lymphoma during pregnancy complicated by placental involvement. In this case, some nodular high-echo patterns were recognized in the placenta by ultrasonography. A cesarean section and resection of the mediastinal tumor were performed at 33 weeks and 6 days of gestation due to the deterioration of the dyspnea. A female infant weighing 1,868 g was delivered and she is now a healthy 2-year-old. The mother, however, died of the disease 1 month after surgery, due to progression of the tumor. The placenta showed numerous white firm nodules varying from 3 mm to 3 cm in diameter. The pathologic findings of both the mediastinal tumor and the placenta indicated primary mediastinal (thymic) B-cell lymphoma.
authors.affiliation: Department of Obstetrics and Gynecology, Nippon Medical School, Tokyo, Japan.
authors.forename: Y
authors.initials: Y
authors.lastname: Nishi
authors.forename: S
authors.initials: S
authors.lastname: Suzuki
authors.forename: Y
authors.initials: Y
authors.lastname: Otsubo
authors.forename: G
authors.initials: G
authors.lastname: Ishikawa
authors.forename: M
authors.initials: M
authors.lastname: Ichikawa
authors.forename: R
authors.initials: R
authors.lastname: Takei
authors.forename: R
authors.initials: R
authors.lastname: Sawa
authors.forename: K
authors.initials: K
authors.lastname: Yoneyama
authors.forename: Y
authors.initials: Y
authors.lastname: Yoneyama
authors.forename: T
authors.initials: T
authors.lastname: Araki
mesh_terms: D000328:Adult; D002585:Cesarean Section; D017809:Fatal Outcome; D005260:Female; D006801:Humans; D016393:Lymphoma, B-Cell / Q000473:pathology* / Q000601:surgery; D008479:Mediastinal Neoplasms / Q000473:pathology* / Q000601:surgery; D009362:Neoplasm Metastasis; D010920:Placenta / Q000000981:diagnostic imaging / Q000473:pathology; D011247:Pregnancy; D011252:Pregnancy Complications, Neoplastic / Q000473:pathology* / Q000601:surgery; D014463:Ultrasonography