RT Journal Article SR Electronic T1 Physiologic 18F-FDG Uptake in Brown Adipose Tissue and Lactating Breast in a Patient with Hodgkin Lymphoma JF Journal of Nuclear Medicine Technology JO J. Nucl. Med. Technol. FD Society of Nuclear Medicine SP jnmt.123.266472 DO 10.2967/jnmt.123.266472 A1 Bi, Lulu A1 Rosenthal, Allison C. A1 Kuo, Phillip H. A1 Yang, Ming YR 2023 UL http://tech.snmjournals.org/content/early/2023/10/18/jnmt.123.266472.abstract AB We present the case of a young woman with Hodgkin lymphoma exhibiting physiologic 18F-FDG uptake in brown adipose tissue and lactating breast on consecutive 18F-FDG PET/CT scans. Both entities are common imaging interpretation pitfalls and should be recognized in oncologic 18F-FDG PET/CT practice. We review the imaging features and differential diagnosis of these 2 entities and discuss the radiation safety precautions during breastfeeding.