[Contribution of spiral CT for the early diagnosis of hepato-cellular carcinoma in cirrhotic patients].

Purpose: To evaluate the specificity of spiral CT for early diagnosis of small hepato-cellular carcinoma.

Patients And Methods: One or several hepatic hypervascular nodules, with a diameter smaller than or equal to 3cm and suspected of corresponding to small hepato-cellular carcinoma, were detected during the arterial phase of spiral CT in 55 patients. The diagnosis of the main nodule could be established in 31 patients by pathologic examination, elevated alpha-foeto-protein level or follow-up examination.

[Leiomyosarcoma and stromal tumor of the pancreas].

A tumor of the head of pancreas was an incidental finding on US of two patients aged 52 and 61 years presenting with abdominal pain. The tumor was studied by computed tomography, MRI and endoscopic ultrasonography. Surgical biopsy of a liver lesion was performed in one case and partial duodenopancreatectomy was performed in the other case.

Comparing contrast-enhanced breath-hold MR angiography and conventional angiography in the evaluation of mesenteric circulation.

Objective: Our aim was to compare the results of gadolinium-enhanced breath-hold MR angiography with those of conventional angiography for the study of mesenteric circulation.

Subjects And Methods: MR angiography and digital subtraction angiography were prospectively performed in 33 patients referred for hepatic, pancreatic, or mesenteric disease. MR angiography was performed with four three-dimensional acquisitions at 0, 30, 60, and 90 sec after injection of 0.