Vaginal tumor–vesical fistula detected by dynamic fluorodeoxyglucose-positron emission tomography/computed tomography: A case report

Abstract

Preoperative fistulas are rare in patients with bladder mucosa-invading gynecological tumors. This is the first reported case of a vesico-vaginal fistula identified using 2-deoxy-2-[fluorine-18]fluoro-d-glucose positron emission tomography/computed tomography (F-FDG-PET/CT) in a patient with vaginal cancer. A 61-year-old woman with vaginal cancer underwent F-FDG-PET/CT for assessment of the mass and lymph nodes. Assessment was difficult because overlap of FDG uptake occurred onF-FDG-PET/CT images obtained 60min after FDG injection. However, dynamic F-FDG-PET/CT clearly indicated the presence of a vaginal tumor-vesical fistula. This case illustrates the usefulness of dynamicF-FDG-PET/CT imaging when assessing a vesico-vaginal fistula.

Enterovesical Fistula in a Lymphoma Patient Revealed by FDG PET/CT With an Oral Contrast Agents

“…Enterovesical fistula as a rare complication typically arises from diverticular disease, Crohn disease, colon malignancy, radiotherapy, or trauma 1,2 . The imaging features of enterovesical fistula as well as other fistulas including gastrosplenic fistula, 3 vesicovaginal fistula, 4 and esophagopulmonary fistula 5 have been reported in previous FDG PET/CT studies. To clearly describe the presence of enterovesical fistula, several techniques such as early dynamic scanning, 6 diuresis, 7 or intravenous contrast 8 have been used.…”