title: Rare lipomatous tumor of the posterior mediastinum in children.
abstract: The mediastinum is a unique anatomic area containing various structures and pluripotent cells, which allow for the development of a range of tumors. We report two pediatric cases of a lipomatous tumor of the posterior mediastinum. Complete surgical excision of the mass in each was achieved through a lateral thoracotomy. Histopathologic findings showed a lipoma in one case and a lipoblastoma in the other. A lipomatous tumor in the posterior mediastinum is extremely rare and preoperative diagnosis is difficult. When an operative plan is being considered, the presence of a potentially malignant tumor should be kept in mind.
authors.affiliation: Division of Thoracic Surgery, Joestu General Hospital, Joetsu, Niigata, Japan.
authors.forename: Takahiro
authors.initials: T
authors.lastname: Homma
authors.affiliation: Department of General Thoracic and Cardiovascular Surgery, University of Toyama, Toyama, Toyama, Japan.
authors.forename: Yoshinori
authors.initials: Y
authors.lastname: Doki
authors.affiliation: Department of General Thoracic and Cardiovascular Surgery, University of Toyama, Toyama, Toyama, Japan.
authors.forename: Kazutaka
authors.initials: K
authors.lastname: Senda
authors.affiliation: Department of General Thoracic and Cardiovascular Surgery, University of Toyama, Toyama, Toyama, Japan.
authors.forename: Masayoshi
authors.initials: M
authors.lastname: Toge
authors.affiliation: Division of Thoracic Surgery, Joestu General Hospital, Joetsu, Niigata, Japan.
authors.forename: Yutaka
authors.initials: Y
authors.lastname: Yamamoto
authors.affiliation: Department of General Thoracic and Cardiovascular Surgery, University of Toyama, Toyama, Toyama, Japan.
authors.forename: Toshihiro
authors.initials: T
authors.lastname: Ojima
authors.affiliation: Department of General Thoracic and Cardiovascular Surgery, University of Toyama, Toyama, Toyama, Japan.
authors.forename: Yoshifumi
authors.initials: Y
authors.lastname: Shimada
authors.affiliation: Department of General Thoracic and Cardiovascular Surgery, University of Toyama, Toyama, Toyama, Japan.
authors.forename: Naoki
authors.initials: N
authors.lastname: Yoshimura
keywords: lipoblastoma; lipoma; mediastinum; pediatric; tumor