Thoracic extramedullary hematopoiesis associated with hereditary spherocytosis.
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.
Abe
T
T
Department of Internal Medicine, Kushiro City General Hospital, Japan.
Yachi
A
A
Ishii
Y
Y
Igarashi
T
T
Tanaka
H
H
Yoshida
Y
Y
Tosaka
M
M
Ishibashi
F
F
Yonezawa
K
K
Ono
A
A
D006411:Hematopoiesis, Extramedullary; D006801:Humans; D008297:Male; D008875:Middle Aged; D013103:Spherocytosis, Hereditary / Q000503:physiopathology*; D013156:Splenectomy; D013909:Thorax