[The Hospital of Origin of Stage (H.O.E.) of Bouleuse/Aubilly/Ste-Euphraise in the storm of beginning of the second battle of the Marne (end May-beginning June 1918): Some memories on René Leriche].

The article deals with the role of the Hospital of "Bouleuse" during the harsh German attack in June 1918 at the beginning of the second Battle of the Marne. The hospital was also a School of War Surgery directed by radiologist Claudius Regaud. Some famous French surgeons (Robert Proust, Lemaître, Roux-Berger) participated in the running of the hospital and René Leriche began his study about osteogenesis and the role of the sympathetic/parasympathetic nervous systems in the big traumatic damages.

[La radiologie est entree avant l'electricite dans les hopitaux de Paris].

The paper looks at the period from 1896 to the beginning of the 20th century and uses as example the installation of radiological equipment by Antoine Beclere, at his own cost, in his department of medicine at the Hopital Tenon, and later at the Hopital Saint-Antoine. The important role of Antoine Beclere in French radiology is recalled as well as his visionary concept of the medical applications of X-rays. The solutions found to ensure the running of the indispensable high tension generators in the two hospitals without electricity are evoked: first, a hand operated electrostatic machine, then an induction coil energized by an accumulator battery that had to be recharched outside.

[Post cards filing and x-rays; a handsome contribution to the history of radiology].

Such a surprising collection points out that every step towards radiological improvement was fully illustrated by a lot of post cards showing public stance about progress into that speciality. From the onset, inquisitiveness of mind and believing to wonderful results due to unseen rays prevailed. Next, came into sight the usefulness of x-rays for diseased people and, during the 1914-1918 war a better chance to save wounded soldiers fated to surgery.

[The first 25 years of digestive radiology].

The first medical radiological attempts used the natural contrasts of the human body: bones of the limbs, intra-alveolar air of the lung; but as regards the abdomen, one could only observe gases or eventually calcified calculi. Whence the idea of a product opaque to the X-rays, not toxic, in order to obtain an internal cast of the various segments of the digestive tractus, making them thus visible by radiology. After little demonstrative trials of opaque sounds and capsules containing opacifying substances, there was an orientation towards the bismuth salts: sub-nitrate and carbonate generally used as therapeutical agents.

[The labrum acetabular. Apropos of 121 arthrographies of the hip in adults].

The authors report a retrospective study of 121 arthrographies of the hip in adults, excluding prostheses. The study was based on normal pathological values for angular measurement of the labrum acetabular: ECB angle (mean value: 15 degrees) enlarging the lateral cover of the head of the femur, VCE angle (mean value: 30 degrees) and a mean global VCB angle of 45 degrees. A certain equilibrium was observed between the covering capacity of the acetabulum and the covering capacity of the labrum acetabular.

[Lumboradiculalgia and calcified disk hernia].

In the context of a particular case report, the authors recall that calcified discs may be responsible for root pain, hyperalgic sciatica or lumbago. In the present case, the pain responded to intra-discal injection of long-acting corticosteroids. The authors compare this case to 10 other personal cases and 16 cases reported in the literature.

[Unilateral isthmic lysis in x-ray computed tomography].

Condensing pediculolaminar hypertrophy of mechanical origin is known as "Dahu's sign". Dahu's sign corresponds to hypertrophy of the vertebral hemi-arch found by CT scan and leads to suspicion of controlateral lysis of the isthmus. It is the CT scan equivalent of vertebral "anisocorism" by conventional radiology.

[Notches of the acetabulum roof. Incidence: anatomoradiological correlation].

An unselected group of patients with rheumatoid affections presents radiologic evidence of a notch of acetabulum roof in about 20% of cases. The anatomic substratum of this variant is described and should be recognized to avoid a mistaken diagnosis of periarticular lacuna.

[The dural sheath in the sitting and standing position during saccoradiculography. Apropos of 150 cases].

Lateral images were studied in the sitting and standing positions during a continuous series of 150 radiculographies, in patients presenting with a symptomatology suggestive of herniated disk or lumbar stenosis. In 67% of cases the dural sac was abnormally reduced at the level of the inter-somatic spaces, due to disk protrusion or intracanalar protrusion of posterior soft tissues. In 23% of cases, an absolute canalar stenosis with anterior-posterior decrease to less than 10 mn in the standing position existed.

[Descending quasi-axial projection of the disk during discography. Principles].

The authors describe a new view of the discography comparable to the axial CT imaging of the disc, so they used the name of "quasi-axial" view. They point the landmarks of this new picture.

[Realization of an incidence of the bicipital groove under the control of televised scopy].

A method is described for control of a bicipital groove projection using a tele-controlled table with centering guided by direct screen imaging: the patient is placed in contralateral anterior oblique position with the arm in antepulsion to project the groove into the supraspinal fossa on a lateral scapular image.

[Spontaneous fracture of the sternum].

Spontaneous fractures of the sternum are unusual. They can simulate cardio-thoracic emergencies. A case of stress fracture of the sternum and of the femoral neck in a patient with corticosteroid induced osteoporosis is reported and the peculiar value of CT assessing the absence of tumoral mass is emphasized.

[Osteonecrosis of the femoral head. MRI study of 60 cases].

Normal and pathologic femoral heads have been studied by MRI at 1.5 Tesla. The study was centered upon avascular necrosis (53 lesions).

[X-ray computed tomographic aspects of lumbar articular synovial cysts with intraspinal development].

CT scan imaging findings are described in 22 patients with lumbar spine joint synovial cysts, of intraspinal development, provoking sciatica or lumbosciatica from nerve compression in spinal canal. Diagnosis was suggested by a mass at the posterior joint level, of variable density, sometimes with peripheral calcification, presenting a vacuum appearance on occasions, and with enhanced image with contrast. Differential diagnosis is from excluded hernia and postoperative fibrosis.