Figure 3
(A–D) Representative 18F-FDG PET/CT images of fibroma in a 59-year-old woman who admitted to hospital due to abdominal pain for 2 months. The maximum intensity projection (MIP, A) showed a slightly increased 18F-FDG uptake shadow in the lower abdomen (arrow). Axial CT of the corresponding site revealed a soft tissue mass of uniform density on the left side of the pelvic cavity (B, arrow). Axial PET (C) and PET/CT fusion (C) images showed a uniform and slightly increased 18F-FDG uptake, with a SUVmax of 2.2. (E–H) Another representative 18F-FDG PET/CT images of granulosa cell tumor (adults type) in a 45-year-old woman who admitted to hospital due to chest and abdominal pain for 2 weeks. The MIP (E) showed an increased 18F-FDG uptake shadow in the lower abdomen (arrow). Axial CT showed that the shadow was located in the pelvic cavity and was a soft tissue density mass (F, arrow). Axial PET (G) and PET/CT fusion (H, arrow) images showed varying degrees of increased uptake of 18F-FDG in the solid components of the tumor, with a SUVmax of 6.8 (red arrow), while the cystic area did not uptake 18F-FDG (white arrow). From these two representative cases, it can be seen that the SUVmax of granulosa cell tumors is significantly higher than that of fibromas.
