Accuracy of whole-body FDG-PET/CT for detecting brain metastases from non-central nervous system tumors.

Objective: Positron emission tomography (PET) using (18)F-fluoro-2-deoxy-D -glucose (FDG) has a limitation in detecting cerebral metastases; however, the feasibility of detection by inline PET/computed tomography (CT) system remains unknown. We evaluated the accuracy of FDG-PET/CT of body imaging protocol for the detection of cerebral metastases when compared with PET alone and CT alone.

Methods: Fifty patients underwent whole-body FDG-PET/CT scanning including the brain and contrast enhanced brain MR (magnetic resonance) scan.

Normal uptake of 18F-FDG in the testis: an assessment by PET/CT.

Objective: The aim of this study was to assess the physiological uptake of 18F-fluoro-2-deoxyglucose (FDG) by an apparently normal testis with combined positron emission tomography-computed tomography (PET/CT) and its correlation with age, blood glucose level, and testicular volume.

Methods: The testicular uptake of 18F-FDG, expressed as the standardized uptake value (SUV), was measured on PET/CT images in 203 men. The correlation between SUV and age, blood glucose level, and testicular volume was assessed.

Pleomorphic sarcoma of the adult urinary bladder: sonographic findings.

Sarcomas with muscular differentiation (eg, rhabdomyosarcoma, leiomyosarcoma, pleomorphic sarcoma) are uncommon in the adult urinary bladder. We report the sonographic findings in a case of pleomorphic sarcoma with muscular differentiation arising from the bladder dome that mimicked urachal carcinoma; findings of correlative imaging are also discussed.

Postsurgical pelvis: treatment follow-up.

Imaging for recurrence and complications of gynecologic malignancies following treatment with radical hysterectomy, chemotherapy, and radiation therapy has become an important determinant for treatment options available to patients. MR imaging and computed tomography can be used to provide evidence of limited local disease recurrence and thereby identify disease that is still potentially curable with adjuvant treatments. This article examines the imaging modalities currently used to detect recurrence and assist in making treatment changes for gynecologic malignancies and presents specific patient findings following definitive primary treatment of uterine cancer and ovarian cancer with radical hysterectomy, radiation therapy, or chemotherapy.

Primary Sjögren's syndrome initially manifested by optic neuritis: MRI findings.

We herein describe the MRI findings in a patient clinically diagnosed with primary Sjögren's syndrome (SjS) initially manifested by retrobulbar optic neuritis. A 63-year-old woman suddenly had left ocular pain and progressive visual disturbance. MR T2-weighted images revealed hyperintensity in the left optic nerve, with swelling.