case_images: PMC11440865_01
case_images: FDG-PET/CT. Roundish sclerosing lesion with low FDG-uptake in the upper left pubic branch.
case_images: fnume-03-1150143-g001.jpg
case_images: PMC11440865_01_fnume-03-1150143-g001.jpg
case_images: F1
case_images: There was no evidence for FDG-avid or enlarged lymph nodes but a small, slightly sclerotic lesion with mild FDG-uptake (SUVmax 3.2) in the upper left pubic bone was detected (Figure 1).
case_images: Histology. Histopathologic examination revealed brown fat cells in the bone marrow, solitary and with focal clustering. The cells typically show multiple small cytoplasmic vacuoles with a central, small nucleus slightly deformed by the homogeneous, small fat vacuoles. Bone remodeling or stromal changes could not be shown.
case_images: fnume-03-1150143-g002.jpg
case_images: PMC11440865_01_fnume-03-1150143-g002.jpg
case_images: F2
case_images: Histological work-up found regular hematopoietic bone marrow with an accumulation of moderately big, foamy cells with central small and inconspicuous nuclei (Figure 2).