[MR imaging of the Tornwaldt's cyst: retrospective study of 1300 patients].

Tornwaldt's cyst is a benign developmental lesion of the nasopharynx, most of all midline located, originating from an outpouching of the pharyngeal mucosa caused by notocord retraction. Usually, the cyst represents an incidental finding of magnetic resonance study. The purpose of this study is to investigate the differential diagnostic aspects of Tornwaldt's cysts, making a comparison with other diseases of nasopharynx on the basis of morphological characteristics and signal, contributing to the previous statistical works.

[Choice of the imaging technique for the diagnosis of bone metastases].

Bone is the third common site of distant metastases in cancer patients. Bone metastases may have implications for prognosis, quality of life, and local and systemic therapy. Numerous imaging modalities may be used to detect bone metastases.

[Effectiveness of conventional diagnostic radiology and nuclear medicine in the treatment of pain from bone metastases].

Bone is one of the most common metastasis sites from solid tumors. Bone pain due to metastatic neoplastic growth is due to tumor infiltration and expansion of bone membranes. Treatment of acute and chronic pain represents one of the greatest problems in clinical oncology, requiring a multidisciplinary approach.

[Imaging and radioguided surgery of tumors NETs].

Neuroendocrine tumors tend to grow slowly and are notoriously difficult to localize, at least in the early stages. Metastases are in most cases already present at the time of diagnosis. Somatostatin receptor scintigraphy improves detection of small and occult NET tumors.

[Perineural tumor spread from the ophthalmic branch of the trigeminal nerve: a case report].

Perineural tumor spread of head and neck malignancies is a well known form of metastatic disease in which a lesion can migrate away from the primary site along the cranial nerves. Nerve function can be preserved even in advanced stages of the disease, making neuroradiological assessment of perineural tumor location and extension of utmost importance, as radiological or pathological examination may reveal normal or nonspecific nerve function. Computed Tomography is useful in detecting foraminal enlargement or more destructive bone patterns.

[Evaluation of the small bowel with computed tomography enteroclysis: technical applications and clinical indications].

CT enteroclysis is an imaging technique that allows better visualization of the small bowel than standard abdomino-pelvic CT. It is more accurate than CT enterography and provides complementary diagnostic information to digestive endoscopy. Multiplanar reconstruction allows better evaluation of the diseases arising from the small bowel wall, or from surrounding organs, resulting in increased accuracy and effectiveness of this imaging technique.

[Inflammatory bowel disease: possibilities and limits in multidetector computed tomography].

Technical advances in computed tomography (CT), including helical CT and multidetector CT, have resulted in an improved ability to evaluate the small intestine. CT examination of the small bowel requires the use of dedicated techniques for optimal evaluation of inflammatory bowel disease in order to select the most appropriate therapeutic strategy for the individual patient and to monitor disease progression over time.Although intraluminal contrast media combined with intravenous iodinated contrast agents with a biphasic injection protocol provide good visualization of the typical lesions of the disease, accurate estimation of the degree of disease activity can only be achieved with nuclear imaging.