Gallium-67 Scan in Granulocytic Sarcoma (Chloroma)

Received 10/21/2000; revised 11/14/2000; accepted 11/21/2000 For correspondence or reprints contact: Dong-Ling You, M.D., Department of Nuclear Medicine, Sun Yat-Sen Cancer Center, 125, Lih-Der Road, Pei-Tou District, Taipei, Taiwan. Tel: (886)2-28970011 ext. 1110, Fax: (886)2-28971100, E-mail: [email protected] Granulocytic sarcoma is an extramedullary tumor of myeloproliferative precursors and may involve multiple sites of body. The role of gallium scan in patients with granulocytic sarcoma is uncertain. This article demonstrates the findings of gallium-67 scan on a case with granulocytic sarcoma that was proved by histopathology and immunohistology. The gallium-67 scan revealed multiple focal areas with intensively abnormal uptake of gallium-67 in the ethmoid, right nasal, right maxillary, bilateral neck, bilateral chest, mediastinal, abdominal, pelvic and bilateral renal regions. The gallium-67 scan indicated the disease was widespread and suggested poor prognosis of the patient. This article delineates granulocytic sarcoma has high affinity for gallium-67 and suggests gallium-67 scan has the role for the whole body evaluation of the extension of granulocytic sarcoma.