Baseline results of the Depiscan study: a French randomized pilot trial of lung cancer screening comparing low dose CT scan (LDCT) and chest X-ray (CXR).

Background: Lung cancer has the highest mortality-rate per cancer, with an overall 5-year survival <15%. Several non-randomized studies pointed out the high sensitivity of low dose computed tomography (LDCT) to detect early stage lung cancer. In France, Depiscan, a pilot RCT of LDCT versus chest X-ray (CXR), started on October 2002 to determine the feasibility of enrollment by general practitioners (GPs), investigations and diagnostic procedures by university hospital radiologists and multidisciplinary teams, data management by centralized clinical research assistants, and anticipate the future management of a large national trial.

[Renin-secreting tumor detected by MRI].

We report an uncommon case of small renin secreting tumor of the kidney located in the medulla. The tumor was primarily detected by MRI and subsequently studied by spiral CT. The results and limitations of both techniques are discussed.

[Breast hematoma and cytosteatonecrosis. Apropos of 55 cases].

The authors report a retrospective study of 55 cases, 34 hematomas and 21 cytosteatonecrosis (CSN) of the breast, during 15 years. The mammary hematoma can appear with an encapsuled or diffused form, or in 40% of cases without radiographic model. The diagnosis of CSN, is easy, such as ringed, macrocalcified, or oil cystic, but when it is the case of solid cicatriciel mass, it is difficult to distinguish it from mammary carcinoma, in approximatively half of the cases.

[Abrikossoff's tumor with bronchial localization. Contribution of x-ray computed tomography in a new case].

The authors present a case of Abrikossoff's tumor located in the segmental bronchus and detected on a systematic chest radiography, diagnosed during an endoscopy is reported. The CT study specified the tumoral extension. Bronchial distal affections is very rare.