[What is it? Left-sided appendicitis].
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Abdominal Pain↗
Biomedical subjects
B Muyard
Publications and source records attributed to B Muyard.
[Ewing's sarcoma of the soft tissues: apropos of 3 cases and review of the literature].
Three cases of extraosseous Ewing sarcoma are reported. This pathology of the young adult is very rare as shown by the review of the literature. Clinical or imaging (CT or MRI) findings are non-specific and diagnosis is based on histology. Nonetheless, this diagnosis should be considered in all patients with primary soft tissue tumors.
Adolescent↗
[Blue nevus of the scalp associated with a meningeal melanocytoma].
INTRODUCTION: Headache opposite to a blue nevus of the scalp can reveal intra cranial melanotic lesions. CASE REPORT: A 25-year-old man caucasian was admitted to hospital for a first generalized tonic-clonic seizure. For six months, he has had episodic frontal-temporal right headache opposite to a blue pigmentary cutaneous congenital lesion in frontal territory (histology confirmed benign blue nevus). Neurologic examination noted a right congenital hereditary ophtalmoplegia. Cerebral MRI showed a right rolandic tumor with diffuse leptomeninge infiltration. This patient was operated of a meningeal melanocytoma with leptomeninges melanosis. DISCUSSION: The apparition of headache related to a blue nevus must lead to realize a cerebral MRI to look for a neuroectodermic hamartoma: melanotic tumor (in particular melanoma), or leptomeninges melanosis with high potential of degeneration. Meningeal melanocytoma is a rare benign spinal or intra cranial melanotic tumor.
Adult↗
[Air in the bone? Diagnosis and treatment of a pneumatocyst of the ilium. Apropos of a case].
We present a case of symptomatic pneumatocyst of the ilium observed in a professional scuba diver exposed to pressure variations. Pneumatocysts are rare and except for one case reported in a clavicular localization, are always found in subchondral bone of the iliac or sacral side of the sacroiliac joint. Undoubtedly, air fills an intraosseous node. We report here the first case of efficient treatment achieved by filling the cyst via percutaneous access under scopic control.
Adult↗
[Role of MRI in spinal and spinal cord emergencies].
Out of 137 cases concerning the spine and spine cord, the authors demonstrate that MRI is nowadays fully integrated in urgency investigations. In all cord compression suspicions and in spine trauma investigations, it's place is found. Coil and software improvements allow to put CT and MR scanning delays on a line. This study underlines the necessity of being equipped with non magnetic life support systems allowing management of very fragile patients. In traumas, MR provides the lesion's authentification, it's type, it's unique localisation or not, and therefore an early functional prognosis. The discovery of spine cord involving lesions in neoplastic conditions allows to follow a therapeutic strateging for maintaining the motor function. In the end, the authors discuss about practical utility of MR in scuba diving decompression accidents. No lesion of the spine cord has been demonstrated in 25 patients, probably because of technical insufficiency.
Adolescent↗
[Ileocolic intussusception in adults. Apropos of a case caused by benign inflammatory polyp of the terminal ileum].
A case of an adult intussusception secondary to a fibroid polyp of the terminal ileum is reported. Adult intussusceptions are observed rarely, usually caused by an organic lesion. The preoperative diagnosis is based on US patterns, target aspect and sandwich sign.
Acute Disease↗
[The adipose tissue of the pelvis in imaging technics].
Fat is a fundamental contrast agent in pelvic imaging. The features of fat are typical on CT and MRI but vary on ultrasonography according to the physical characteristics and histology. The study of pelvic fat is of great importance in pelvic exploration because fat outlines both the normal structures and their borders. Involvement or masking of the pelvic fat is a good marker of carcinologic spread. Changes in pelvic fat may also be observe in inflammatory diseases. Specific diseases of fatty pelvic connective tissue such as lipomatosis and liposarcomas, are classically described. Teratomas with a fatty component derived from pelvic structures (ovaries) are easily diagnosed using imaging methods.
Adipose Tissue↗
[Radiologic aspects of pneumonectomies].
Pneumonectomy is very important in the treatment of bronchial cancer and is responsible for considerable changes in thoracic images. A study based on 28 pneumonectomy cases has enabled us to define the normal radiographic and scanographic features of pneumonectomy sites as well as the main specific complications. Primary follow-up consists of standard X-rays, while computed tomography allows a good analysis of the anatomical course. Computed tomography is also useful in late medical follow-up, especially when a recurrence is noticed clinically.
Bronchial Neoplasms↗
[The thorax of patients in diving accidents. Radiologic study].
On the basis of a series including 185 files on diving accidents gathered between 1981 and 1988, the authors carry out a radiological study of the thoracic signs observed after drowning and lung overpressure. The typical radiological form and the various clinical forms of drowning and lung overpressure are described in this article. Emergency plain thoracic radiography in bed in the method of choice. However, the existence of many false-negative findings leads to proposing a study with computed tomography (CT) after initial treatment in order to better assess the lesions and to characterize the accident. The utility of radiology is also demonstrated for the follow-up of evolution. Lastly, the authors lay stress on the necessity to prevent such accidents, to which radiologists can contribute by detecting thoracic lesions (dystrophy and other evolutive lesions) for which diving is contraindicated.
Decompression Sickness↗
[Non-gynecologic fluid images of pelvis. Ultrasonic study].
From a series of 6,573 echographic surveys of pelvis in male and female, the authors point out 789 liquid images among them 82 are non gynecologic lesions. A statistical study of the different observed etiologies is proposed and compared with those of the literature. The main cases observed are gathered under several items: abscess, hematomas, urinary, digestive and vascular images and studied semiologically. The discussion points out the low frequency in opposition to the etiological diversity of this type of image and precise the diagnostic procedures rules which include other imaging methods especially computed tomography.
Abscess↗
[Polysplenia with duplication of the inferior vena cava. Apropos of a case].
A case of polysplenia fortuitously discovered in an adult by sonography, then studied by computed tomography and inferior vena cavography, is reported. In the absence of cardiac anomalies, the different elements of the syndrome are discussed: multiple spleens, abdominal heterotaxia and vascular malformations. The duplication of the inferior vena cava is exceptional in this disease. Its original characteristic is shown by the cavography and brought to its embryologic origin.
Aged↗