Asymptomatic Bone Marrow Edema Detected by 67Ga Scintigraphy A 46-year-old woman presented with a complaint of fever. CRP was 2.1 mL/L in blood, white blood cell count was 20–29/hpf, and bacterial count was 3418/μL in a urinalysis. 67Ga scan revealed accumulation of 67Ga in the left distal femur, although she had no symptoms around the site. MRI demonstrated diffuse high signal intensity on T2-weighted STIR images. Osteomyelitis was suspected, and biopsy was performed. Bacterial culture of the bone marrow was negative, and histological examination showed no infiltration of inflammatory cells. Two months after the biopsy, disappearance of altered signal intensity of MRI was observed. Received for publication February 15, 2019; revision accepted April 27, 2019. Conflicts of interest and sources of funding: none declared. Correspondence to: Shinji Miwa, MD, PhD, Department of Orthopaedic Surgery, Graduate School of Medical Sciences, Kanazawa University, Kanazawa, Japan. E-mail: smiwa001@yahoo.co.jp. Copyright © 2019 Wolters Kluwer Health, Inc. All rights reserved.