title: [Video-assisted thoracoscopic surgery for intrathoracic extramedullary hematopoiesis].
abstract: Extramedullary hematopoiesis (EMH) is associated with hematopoietic disorders, with intrathoracic EMH being a rare presentation. We report a case of posterior mediastinal EMH masses in 63-year-old male with congenital hemolytic anemia. Multiple paravertebral masses with dense soft parts and well defined borders, but without accompanying calcification or bone erosion were identified on a chest computed tomography (CT) scan during an examination for another disease. A left-posterior mediastinal mass was resected using video-assisted thoracoscopic surgery. Post-operative pathological examination showed that the tumor was covered completely by a capsule, and composed of mature adipose tissue and hematopoietic tissue including erythroblasts and myeloid cells. Based on these findings we diagnosed intrathoracic EMH.
authors.affiliation: Department of Thoracic Surgery, Sapporo City General Hospital, Sapporo, Japan.
authors.forename: Motoki
authors.initials: M
authors.lastname: Sakuraba
authors.forename: Akihiko
authors.initials: A
authors.lastname: Tanaka
authors.forename: Hiroe
authors.initials: H
authors.lastname: Itami
mesh_terms: D006411:Hematopoiesis, Extramedullary; D006801:Humans; D008297:Male; D008875:Middle Aged; D013896:Thoracic Diseases / Q000175:diagnosis*; D020775:Thoracic Surgery, Video-Assisted