Magnetic resonance imaging of bone marrow metastasis with fluid-fluid levels from small cell neuroendocrine carcinoma of the urinary bladder.

Fluid-fluid levels have been reported as an extremely infrequent and non-specific condition in many benign and malignant bone lesions. We present the first reported MRI findings of bone marrow metastasis with fluid-fluid levels from small cell neuroendocrine carcinoma of the urinary bladder to the lumbar spine. Radiologists should be aware of the MRI appearance of these extraordinary lesions in order to provide a complete differential diagnosis and to guide clinicians in adequate treatment.

3D CT versus axial helical CT versus conventional tomography in the classification of acetabular fractures: a ROC analysis.

Aim: To assess the diagnostic power of three-dimensional computed tomography (3D CT), axial helical computed tomography (CT) and conventional tomography in the classification of acetabular fractures by interdisciplinary review.

Materials And Methods: Receiver operating characteristics (ROCs) were assessed for two radiologists and two surgeons blinded to the presence of acetabular fractures in an animal model (a total of 62 porcine hips, 40 of them with artificial acetabular fractures). Main target parameter was the diagnostic accuracy in the classification of the artificial fractures following Judet et al.

CT fluoroscopy-assisted puncture of thoracic and abdominal masses: a randomized trial.

Purpose: We investigated the benefit of real-time guidance of interventional punctures by means of computed tomography fluoroscopy (CTF) compared with the conventional sequential acquisition guidance.

Material And Methods: In a prospective randomized trial, 75 patients underwent either CTF-guided (group A, n = 50) or sequential CT-guided (group B, n = 25) punctures of thoracic (n = 29) or abdominal (n = 46) masses. CTF was performed on the CT machine (Somatom Plus 4 Power, Siemens Corp.

Cowper's syringocele: diagnosis based on MRI findings.

An 8-year-old boy presenting with intermittent haematuria and dysuria was investigated with voiding cystourethrography (VCUG), urethroscopy and perineal MRI. VCUG and urethroscopy did not provide a definitive diagnosis, while MRI clearly demonstrated a homogeneous, oval cystic lesion extending from the bulbourethral glands and slightly impressing the bulbous urethra. The patient was found to have an imperforate Cowper's syringocele.