[Computerized tomography in the diagnosis of craniomandibular disorders: radiological-surgical comparison].

Among 500 C.T. scan of temporomandibular joint (T.

[The CT scanner and the temporomandibular joint. Anatomo-radiologic comparisons. Apropos of 14 cases of algodysfunctional of the manducator system].

Among 500 CT scan of temporomandibular joint (TMJ), examined since 1982 by bilateral direct sagittal method (Department of Radiology, Pr. A. TREHEUX, CHU Nancy-Brabois), the authors have retained 14 cases of patients with symptoms related to TMJ's dysfunction cured by surgery (Department of Maxillo Facial Surgery, Pr STRICKER, CHU Nancy).

[The scanner and the temporomandibular joint; anatomic-radiologic comparisons. Apropos of 26 cases of masticatory apparatus pain-dysfunction syndrome].

Among 500 CT scan of temporomandibular joint (TMJ), examined since 1982 by bilateral direct sagittal method (Department of Radiology, Pr. A. Treheux, C.

[Computerized tomography of sagittal sections. A noninvasive alternative in the exploration of temporomandibular joint dysfunction].

Important advances in the use of CT scan imaging for exploration of the temporomandibular joint include the obtaining of direct sagittal section images and the possibility of surveillance. This avoids the need for more invasive and painful techniques such as arthrography. The position of the meniscus can be determined from either direct or indirect signs and bone structures and muscles are particularly clearly demonstrated.

[Extension to the thoraco-abdominal wall of actinomycoses. Value of computed tomography].

Four patients with deep visceral actinomycosis infections presented evidence of extension to the thoracic or abdominal wall. Investigation of the chronic parietal suppuration by CT scan imaging allowed definition of the nature and extent of parietal infiltration, and notably to demonstrate its anatomical continuity with the often unrecognized deep focus: chronic lung disease, appendicular or colon mass, chronic genital infection in patients with intra-uterine device.

[Sinusal-dental tomography and dental origin of chronic sinusitis].

Always frequent and often misleading, chronic sinusitis are multifactorial. Consequently, the role of teeth apical infection is largely underestimated. The difficulties of interpretation of the sinus radiographic imaging are well established, particularly in the study of the dental with sinus border.

[X-ray computed tomography and synovial chondrometaplasia].

Scanography allows diagnosis of radiotransparent intra-articular foreign bodies and establishment of their synovial origin, sometimes even in the absence of joint opacification. It provides an overall assessment of the joint that can be improved by arthrography. Clinical and standard radiologic pictures of primary synovial chondrometaplasia (synovial osteochondromatosis) and intra-articular foreign bodies can cause confusion if the latter are modified by secondary chondrometaplasia.

[Tumefactive biliary sludge. Ultrasonic aspects].

Twenty two patients presenting a typical sonographic pattern of tumefactive biliary sludge are studied. In all cases was observed a polypoid mobile, rounded mass, without acoustic shadow. The lesion stayed in the gallbladder in 15 cases and in distended main bile duct in 3 others.

[Tuberculous trochanteritis: value of ultrasonic diagnosis and x-ray computed tomography. Apropos of 3 cases].

Trochanteritis is a rare osteoarticular site of tuberculosis which initiates within the serous bursa of the gluteus maximus and extends only secondarily to the greater trochanter. Its course is a slow one. Diagnosis is usually delayed but should be made earlier by the use of ultrasound and the CT scan.

[Role of computed tomography in the diagnosis and surveillance of hepatic alveolar echinococcosis].

Based on findings in 28 cases of hepatic alveolar echinococcosis, the most frequently encountered signs constituting a true "scannographic profile" are described. These include global hypodensity with poor or absent intensification of image after iodized contrast, very high frequency of intralesional calcifications often combined with necrotic plaques, peripheral retraction. Employed after standard radiologic imaging and ultrasonography, the scanner should be used to provide positive confirmation of the diagnosis of the parasitosis, and as a reference element in evaluation of intra- and peri-hepatic extension, both during the moment of choice of initial therapy and during follow-up reviews.

[Radiologic imaging of annulo-ectasia disease of the aorta. Experience with 26 cases].

The authors describe the radiologic appearance of annulo-aortic ectasia in 26 patients who had plain chest radiography and aorto-seriography. Two also underwent C.T.

[Echographic and x-ray computed tomographic aspects of pneumatosis cystoides of the colon in the adult. Apropos of a case].

A case of pneumatosis cystoides Coli located in the sigmoid in an adult is reported, with emphasis on US and CT aspects. CT patterns of pneumatosis cystoides Coli are highly significative; particularly attenuation values measured in the endoluminal polypoid images are characteristics and represent an interesting contribution to the diagnosis of this disease.

[X-ray computed tomography in the study of anterior instability of the shoulder. Study of a series of 23 cases].

The place of standard CT scan imaging more particularly when combined with double contrast arthrography, is defined in the preoperative screening of patients with anterior instability of the shoulder. The joint scan provides complete data on the anatomic elements of the shoulder lesion, particularly with reference to the glenoidal labrum and the anterior capsular structure. It is also of major diagnostic value in painful subluxations.

[Role of echography in the diagnosis and monitoring of hepatic alveolar echinococcosis].

By means of a review of a series of 30 cases of hepatic alveolar echinococcosis, the authors propose a classification of the various sonographic patterns; they point out the heterogeneous form which associate necrosis and calcification inside an hyperechoic mass and is the most frequent. The interest of ultrasonography for detection of lesions, its limits for diagnosis of extension, the contribution of percutaneous biopsy are discussed, as its place in the survey of the affection.

[Evaluation of the role of angiography in the diagnosis and surveillance of hepatic alveolar echinococcosis].

The authors recall the main pathologic and physiopathologic data necessary to understand the angiographic patterns of hepatic alveolar echinococcosis, by means of a rereading of a personal series of 37 cases. They show that this affection has a diagnostic angiographic shape which associate four signs: avascular aspect of the lesions, regular invasion of vessels, presence of a collateral circulation, absence of neovascularisation. Digestive angiography stays a good diagnostic method for the parasitosis, when epidemiological context, ultrasound or CT scan gave no explicit conclusion.

[Riedel's lobe. Echotomographic aspects].

The acquired or congenital nature of Riedel's lobe, a rare anomaly of hepatic lobulation, is a subject open to controversy. Normally asymptomatic, it presents as a palpable mass in the right hypochondrium leading to possible confusion with an hepatic or a renal tumor. Correct diagnosis can be established by the characteristic findings an ultrasonography.

[Stress fractures of the pelvis].

Stress fractures of the pelvic ring should be suspected everytime a patient complains of hip pain. These stress fractures are more likely to occur in elderly, obesity, rheumatoid arthritis, osteoarthritis of the hip and after total hip replacement. A bone scan should be performed for early diagnosis, for roentgenolographic evidence of stress fracture often one ago two or three weeks behind the onset of symptoms.

[Generalized adenomyomatosis of the gallbladder: ultrasonographic appearance in one case (author's transl)].

Ultrasonographic images were correlated with radiological and pathological findings in a case of generalized adenomyomatosis of the gallbladder. Emphasis is placed on the importance of the methods employed for filling the biliary tracts with opaque medium, to confirm a suspected diagnosis suggested by the heterogeneous irregular thickening, with a fringed internal limit, of the gallbladder wall.

[Ultrasonographic appearance of gallbladder calcification: a case report (author's transl)].

Ultrasonographic examination in a patient with gallbladder calcification demonstrated a spiral image analogous with that observed in sclero-atrophic gallbladder lithiasis. A straight film of the abdomen should be performed before ultrasonographic exploration, as before any examination of the biliary tract employing an opaque medium.

[Intramural pseudo-diverticulosis of the oesophagus. Radiological appearances in two cases (author's transl)].

Intramural pseudo-diverticulosis of the oesophagus is the result of an anomaly of the deep glands of the oesophagus, the pathogenicity of which is open to debate. A rare lesion, it is often unrecognised on endoscopy, but presents characteristic features on double-contrast examination.