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Biomedical subjects

B Coulier

Publications and source records attributed to B Coulier.

At least 19 recordsLinked to original sources
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↗
PubMed1994

[Pulmonary edema secondary to the intravenous administration of iodized contrast. A clinical case with high-resolution tomodensitometry studies].

Contrast media related reactions are numerous and of variable gravity. We report a case of pulmonary edema related to the intravenous administration of contrast media. Cardiogenic and non cardiogenic pulmonary edema are pathophysiologic possibilities. High resolution CT findings associate patchy ground glass areas and smooth thickening of subpleural septa, both rapidly disappearing.

Aged↗
PubMed1994

[Lipoma of the filum terminale: a prospective tomodensitometry study].

A lipomatous aspect of the filum terminale is sometimes recognized in routine lumbosacral CT studies as a small (1 to 2 mm) tubular fatty hypodensity that lies posteriorly in the dural sac. To study the epidemiologic frequency and pathological significance, the authors prospectively reviewed the standard lumbosacral CT studies of a large series of 1033 adult patients suffering from mechanical problems. The lipomatous aspect was encountered in 39 of them (3.77%). The average size was about 1 mm and never exceeded 2 mm (92%) except for 3 cases. The commonest site was L4-L5 but the anomaly was more commonly seen at two levels. Despite the lack of histological proof, the authors consider the lesion benign and trite with two restrictions: the pediatric cases (not studied in their series) and the patients presenting a lipoma greater than 3 mm; for these two groups further investigations are recommended to exclude a tethered cord syndrome.

Adult↗
PubMed1994

[A cause of intestinal intussusception in an adult].

Inflammatory fibroid polyp is a very rare tumor involving the gastrointestinal tract and especially the stomach and small bowel. It presents either as a solitary pedunculated or sessile lesion arising from the submucosa. Despite its large size and sometimes very infiltrating growth, the polyp is benign and has a good prognosis. The aetiology remains unknown but it probably represents a reactive proliferation similar in many respects to the granuloma pyogenicum. We report an ileal case which presented itself as an acute intussusception. The very typical and complete sonographic and tomodensitometric findings of this intussusception are detailed. The polyp alone does not have noteworthy radiological characteristic signs and must be included in the large and essentially histological differential diagnostic of gastrointestinal tumors.

Adult↗
PubMed1993

[Infected urachal cyst].

There is a wide variety of pathologies associated with the presence of urachal remnants. We describe a case of infected urachal cyst in a young adult male, with classical symptoms of dysuria, lower abdominal pain, and fever. Ultrasound, cystography and CT are described, ultrasound being often the modality of choice. Differential diagnosis of acute abdominal and pelvic pain or a midline lower abdominal mass at this age should include infection of an urachal remnant.

Adult↗
PubMed1992

[Lumbar arachnoid cysts: 2 unusual cases].

Two cases of arachnoid cyst in the lumbar region are described. One is intradural, acquired, and associated to severe arachnoiditis while the other is extradural in location and probably congenital. The interest of myelography, CT myelography, and MRI for the diagnosis is discussed.

Adult↗
PubMed1992

[Anorectal anaplastic cancer (neuroendocrine)].

An extensive case of undifferentiated neuroendocrine carcinoma with small cells of the anorectal region is reported. The carcinoma is related to pulmonary anaplasia and quite rare in the colonic and rectal region. Its aggressivity is considerable with a strong propensity for hematogenous and lymphatic metastases and with a disastrous prognosis: 0% survival over 1 year. The incidence, the characteristic features, the histogenesis, and the anatomical pathology of this rare neoplasm are mentioned. Furthermore, the case illustrates a radiological pattern typical for major lymphatic dissemination with an intra- and extraparietal component. The mechanism of dissemination is explained by the "lymphatic block" theory. The absolute necessity of obtaining an histology in radiologically unusual and/or extensive cases is mentioned.

Adult↗
PubMed1991

[The value of ultrasonography and computerized tomography in mandibular diseases: apropos of 2 cases of chronic fistulizing mandibular osteitis].

Though US and CT are infrequently used for the detection of mandibular disease, both techniques definitely contributed to the detection and extension work-up of fistulizing chronic mandible osteitis in our 2 patients. US clearly visualizes the mandible margin and enables detection of abnormal foramina. CT is highly valuable for the visualization of the complex (flat and curved) structure of the mandibular body and the adjacent soft tissues. While routine intraoral radiography remains necessary and sufficient in easy pathological conditions, it appears from our experience that CT and US are of unique value in detecting complex or complicated mandibular disease, in particular when involving the surrounding soft tissues.

Adolescent↗
PubMed1990

[Pelvic plexiform neurofibroma: typical aspects in CT].

Plexiform neurofibroma is a relatively uncommon but characteristic manifestation of neurofibromatosis. Two pelvic cases were found by CT in two young patients in whom it was the first fortuitous manifestation of the disease. The CT pattern, which seems to be in close relation with pathology, is described and illustrated. This pattern is so typical that there is no difficulty to establish the differential diagnosis. The question of sarcomatous transformation is more problematic by CT.

Adult↗