Leukocytosis associated with secretion of granulocyte colony-stimulating factor (G-CSF) has been reported in various tumors, primarily poorly differentiated epithelial tumors, but is extremely rare in bone tumors. An 84-yearold woman experienced swelling and pain in the shoulder for 1 month. Leukocytosis and elevated serum G-CSF were observed, but resolved following tumor resection. A diagnosis of leiomyosarcoma of the bone with expression of GCSF was confirmed immunohistochemically. Histological diagnosis of leiomyosarcoma showed it to be differentiated, which is unusual for G-CSF-secreting tumors.
All Science Journal Classification (ASJC) codes
- Radiology Nuclear Medicine and imaging