title: Thoracic extramedullary hematopoiesis associated with hereditary spherocytosis.
abstract: A 54-year-old man was diagnosed with hereditary spherocytosis. An X-ray of the chest disclosed bilateral round masses in the upper and lower posterior mediastinum. CT showed homogeneous round masses of soft tissue density in the posterior mediastinum. A needle biopsy of the mass showed hyperplastic erythroid bone marrow. Fatty metamorphosis of the masses was observed in CT 2 years after splenectomy but showed no change in size.
authors.affiliation: Department of Internal Medicine, Kushiro City General Hospital, Japan.
authors.forename: T
authors.initials: T
authors.lastname: Abe
authors.forename: A
authors.initials: A
authors.lastname: Yachi
authors.forename: Y
authors.initials: Y
authors.lastname: Ishii
authors.forename: T
authors.initials: T
authors.lastname: Igarashi
authors.forename: H
authors.initials: H
authors.lastname: Tanaka
authors.forename: Y
authors.initials: Y
authors.lastname: Yoshida
authors.forename: M
authors.initials: M
authors.lastname: Tosaka
authors.forename: F
authors.initials: F
authors.lastname: Ishibashi
authors.forename: K
authors.initials: K
authors.lastname: Yonezawa
authors.forename: A
authors.initials: A
authors.lastname: Ono
mesh_terms: D006411:Hematopoiesis, Extramedullary; D006801:Humans; D008297:Male; D008875:Middle Aged; D013103:Spherocytosis, Hereditary / Q000503:physiopathology*; D013156:Splenectomy; D013909:Thorax