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FIGURE 1. Typical case of malignant cervical cancer (patient 15). Patient was 83-y-old woman who consulted our hospital because of chief complaint of abnormal genital bleeding. (A) MRI revealed mass measuring 3 cm in diameter in cervical region of uterus. (B) 18F-FDG PET images showed marked 18F-FDG accumulation (SUV = 13.58) in region identical to that of mass detected by MRI. Although MRI showed urinary bladder at level similar to that of mass, 18F-FDG in urinary bladder was eliminated by bladder irrigation, which facilitated evaluation of PET images. Diagnosis of squamous cell carcinoma was established on basis of biopsy results.