Search PubMed⌕ Search

Biomedical subjects

B Coulier

Publications and source records attributed to B Coulier.

At least 19 recordsLinked to original sources
PubMed2000

[Diagnosis and staging using spiral computed tomography of an endobronchial carcinoid tumor].

The authors emphasize the effectiveness of spiral CT in the diagnosis of typical endobronchial carcinoid. The tumor was found in a 25-year-old man referred for evaluation of steroid-resistant asthma. Successful diagnosis and complete local staging of the right intermediate bronchus tumor were obtained by two successive single apnea spiral acquisitions: a high resolution series (HRCT) with Multiplanar Reconstruction (MPR) and 3D virtual endoscopic views was completed by a dynamic angiographic series (angio-CT) with multiplanar Maximal Intensity Projections (MIP). The CT findings are compared with macroscopic anatomic views and major features of bronchial carcinoid are shortly addressed.

Adrenal Cortex Hormones↗
PubMed1999

[Alveolar proteinosis: signs and prognosis using high-resolution computed tomography in 5 patients].

Pulmonary alveolar proteinosis is a rare idiopathic diffuse airspace disease characterized by intraalveolar accumulation of large quantities of lipoproteinaceous material. The clinical presentation and course are variable and the definite diagnosis is made by biopsy or broncho-alveolar lavage (BAL) that also constitutes the unique and empiric treatment. We report the extremely typical HRCT features of the disease found in a series of five patients diagnosed in our institution over a ten-year period. The HRCT signs and their evolution are discussed. A continuous spectrum of findings going from isolated ground glass opacities to lobular consolidation is found, but the most common and invariably present pattern consists of ground glass areas with superimposed smooth septal thickening; these areas have a patchy or geographic distribution--often termed the "crazy-paving" pattern--and are unlike pulmonary findings in any other disease.

Adult↗
PubMed1998

[Distension of the inter-facet joints in MRI: and indirect sign of an existing underestimation of spondylolisthesis and canal stenosis].

The authors present two observations of degenerative spondylolisthesis causing canal stenosis in which the stenosis was not apparent on MRI examination, due to reduction of spondylolisthesis in the supine position. In these cases, MR images of the facet joints showed unusual large areas with hypersignal on T2 weighted images suggestive of fluid collection. Observation of such images on supine MRI images should raise the suspicion of a spondylolisthesis existing on standing examination but reduced by the supine position, possibly leading to underestimating the canal stenosis.

Female↗
PubMed1998

[Computed tomography diagnosis of symptomatic ossification of the thoracic flaval ligaments].

We report two rare cases of prominent ossified ligamenta flava of the thoraco-lumbar junction. The first case presented with thoracic myelopathy diagnosed by spinal MRI. The definite diagnosis and the nature of the T10-T11 compressing process was established by spiral CT with multiaxial reconstruction and the patient was treated by laminectomy. In the second case the ossifications were found on a lateral lumbar X-ray and confirmed by spiral CT with multiplanar reconstructions. The pathology was essentially confined to the lateral portion of the T12-L1 ligamenta flava resulting in stenosis of the formaina only with respect of the central canal. The current literature is reviewed and the major role of CT for the diagnosis of such rare calcifying process of the spine is emphasized.

Adult↗
PubMed1998

[Computed tomography diagnosis of clinically well-tolerated bilateral lumbar vertebral synovial cysts].

We report two very rare cases of bilateral synovial cyst of the lumbar spine arising at the L4-L5 level. The diagnosis was made by CT without any ambiguity. The reported lesions illustrate almost the complete panel of CT findings in synovial cyst of the spine including gas formation, marginal calcifications, bone erosion of the adjacent lamina, and in one case the original development of an intracystic calcified nodule. The symptoms of the two patients improved with medical treatment only and spontaneous regression of the calcified cysts was confirmed in one case.

Anti-Inflammatory Agents↗
PubMed1998

[Computed tomographic diagnosis of biliary ileus].

Rare in the general population, gallstone ileus accounts for 25 per cent of nonstrangulated small bowel obstructions in patients over the age of 65. While mortality has declined over the years, it remains high at 12-17 per cent. This is largely due to the insidious symptoms making the diagnosis difficult and to the aged patient population, with frequent comorbid medical conditions contributing to mortality. Much better than plain radiograph and probably easier than ultrasound, CT makes the correct diagnosis of the classical triad of Rigler: distended small bowel loops, pneumobilia and an ectopic calcified gallstone. We report two cases promptly and specifically diagnosed with CT. The second case was a very rare Bouveret's Syndrome, a gastric outlet obstruction caused by a gallstone. Patients were treated by a one time associated enterolithotomy and cholecystectomy. We recommend the early use of abdominal CT scanning for the investigation of clinical bowel obstruction in the elderly, where gallstone ileus is a more common condition.

Aged↗
PubMed1997

[Diagnostic ultrasonography of perforating foreign bodies of the digestive tract].

Perforations of the gastrointestinal tract by ingested foreign bodies such as chicken or fish bones are rare and may occur at any site from the oesophagus to the rectum; the diagnosis is often very uneasy with conventional radiography. For many years, sonography has been more frequently requested as the first modality for the evaluation of abdominal pathology, and in many cases allowed a correct diagnosis to be reached without further assessment. We report six cases of complicated foreign bodies very successfully and specifically diagnosed by sonography in six different sites of the gastrointestinal tract. Four of these cases were preliminary correctly suspected by CT but the shape, length and the probable nature of the body were always better appreciated by multiaxial real time sonography. The correct sonographic diagnosis and follow-up allowed a conservative treatment in three cases, avoiding surgical exploration. We recommend the systematic sonographic investigation of foreign bodies in close relation with the gastrointestinal tract in all atypical inflammatory processes or to perform sonography as a complement to CT.

Adult↗
PubMed1997

[Strangulated intestinal Spigelian hernia].

Spigelian hernia, an uncommon hernia of the anterior abdominal wall, has serious complications in a high percentage of cases. The diagnosis is often difficult because the symptoms can be insidious or simulate those of more classical lower quadrant abdominal diseases. Furthermore, the clinical findings are often nonspecific. We report a case of Spigelian hernia complicated by acute strangulation diagnosed by ultrasound. The anatomic features and the physiopathology are reviewed and illustrated by another typical case diagnosed by CT. CT is superior to sonography in showing the defect of the abdominal wall, in identifying the contents of the hernial sac and in discovering abnormalities in other areas of the abdomen. Sonography also generally appears adequate in showing a parietal defect. We therefore recommend systematic ultrasonographic examination of the abdominal wall in all doubtful cases of undiagnosed abdominal pain with vague gastro-intestinal symptoms.

Abdomen, Acute↗
PubMed1996

[Late diagnosis of a traumatic pseudo-aneurysm of the subclavian artery].

The authors report a rare case of subclavian pseudoaneurysm diagnosed six months after a left clavicular fracture. The leading symptoms were pain and claudication in the left arm related to peripheral embolization. The essential diagnosis was made by selective arteriography followed by arterio-CT. Peripheral embolization or brachial nerve compression are the most common presentations of subclavian pseudoaneurysms. To avoid such late complications, the authors emphasize the importance of the initial vascular examination of the shoulder after blunt trauma with or without clavicular fracture. Surgery is imperative and the use of autologous vein graft is the method of choice.

Adult↗
PubMed1996

[Hypoechogenic aspects of the ventral embryonic cephalic pancreas: a large prospective clinical study].

Global echogenicity of the normal pancreas increases essentially with lipomatous involution which is common with aging. However, the two embryologic different parts of the cephalic pancreas may present a different echogenicity: the "embryologic ventral" pancreas-posterior cephalic pancreas + uncinate process-is then hypoechoic because of less fatty involution. It is important to distinguish such normal variant from a pathological process. The clinical prevalence and morphologic characteristics of this normal variant have been prospectively studied in a large series of 446 patients including 275 females and 171 males. The study confirms the proportional increase of pancreatic echogenicity with age. The variant has a sharp female predominance: 27.5% of males vs 43.3% females, corresponding to a sex ratio of 1:1.52. Hypoechoic ventral embryologic cephalic pancreas is never encountered before the age of 25 and is most frequent in middle aged females with moderately echoic pancreas. There is not any difference in global cephalic pancreatic thickness between our positive group and a negative group of reference of 66 patients. These observations rather plead a genetic uneven fatty involution in positive cases instead of ventral pancreas atrophy in negative cases. The morphological and biometric characteristics of the hypoechoic embryologic ventral pancreas are rather stable. These are relatively independent from age, sex, and global pancreatic echogenicity.

Adult↗
PubMed1995

[Prostatic leiomyoma].

Large leiomyomas of the prostate are rare tumors. The authors report the case of a 78-year-old patient with two large prostatic leiomyomas who presented with chronic obstructive urinary symptoms. The US and CT aspects are illustrated; the signs are not specific but rather suggest a benign process. The tumor, probably of embryologic origin, must be distinguished from neoplasms when presenting in association with the classical benign prostatic hypertrophy. The definite diagnosis is obtained histopathologically. Prognosis is good with no evidence of recurrent disease.

Aged↗
PubMed1995

[Presentation of an acute and painful giant, necrotic ileal leiomyoma].

We report on a case of giant necrotic ileal leiomyoma presenting uncommonly as a painful pelvic mass mimicking a sigmoid inflammatory process. The classical symptoms and clinical aspects of intestinal leiomyoma are briefly summarized. The CT and US aspects are described with peculiar attention to color Doppler which played an important role in the diagnosis of our patient.

Acute Disease↗
PubMed1995

[Giant and bilateral renal angiomyolipomas].

We describe the very pathognomonic CT aspects of giant renal angiomyolipomas fortuitously demonstrated in a young male with typical neurological and dermatological patterns of tuberous sclerosis. Angiomyolipomas are rare but 20 to 50% are associated with multiple sclerosis. The advent of CT has made the diagnosis much accurate and avoids unnecessary surgery especially for a single mass. The presence of fat intermixed with areas of other tissue density is very specific and practically excludes the diagnosis of renal carcinoma. Along with MRI, CT is a method of choice to delineate the sometimes very invading tumor. The symptoms of tuberous sclerosis are shortly reminded; the clinical presentation and complications of angiomyolipomas are briefly described.

Adult↗