Search PubMed⌕ Search

Biomedical subjects

J Drouillard

Publications and source records attributed to J Drouillard.

At least 55 records · Page 3Linked to original sources
PubMed1987

Non-renal urological lymphomas.

IVP, US and CT findings for 5 rare cases of non-renal lymphomas of the urinary tract are discussed. The 4 non-Hodgkin lymphomas (NHL) and 1 Hodgkin's disease (HD) involved the ureter (2 cases), bladder (2 cases) and renal pelvis (1 case). US and CT visualised the pyelic lesion (undetected by urography) as wall thickening and detected the two ureteral lesions (which were also revealed by antegrade pyelography for the 1 HD and by retrograde pyelography for an ureteral NHL). One bladder lesion was associated with a renal lesion (CT demonstrated retroperitoneal lymph nodes); the other was a multinodular form infiltrating the entire bladder.

Adult↗
PubMed1987

Gastric leiomyosarcoma. Comparative value of barium examinations, ultrasonography and CT scans.

The authors discuss four cases of gastric leiomyosarcoma explored by various imaging techniques (barium examinations, ultrasound, CT scans). Barium examinations were normal in two cases, abnormal but insufficient for diagnosis in one, and sufficient to allow topographic diagnosis in one. Ultrasonography gave abnormal findings insufficient for diagnosis in two cases and allowed topographic diagnosis in the other two cases. CT scans were abnormal but insufficient for diagnosis in one case, allowed topographic diagnosis in 3 cases, and in two of the cases permitted initial diagnosis of a connective tissue malignancy. Due to the frequently subserosal nature of leiomyosarcoma of the stomach and of the digestive tract in general, analysis by CT in mandatory. Analysis of tumor relations with the spleen, the left kidney and the pancreas is facilitated by ultrasonography.

Adult↗
PubMed1987

[Mesenteric cysts in the adult].

The authors describe five cases of mesenteric cysts evaluated by ultrasonography and computed tomography: 3 cases of cystic lymphangioma, 1 vestigial serous cyst, 1 dermoid cyst. Ultrasonography is useful for analyzing the contents of these lesions, and must be utilized to search for possible pelvic anomalies, allowing diagnosis of pendunculated ovarian cysts for example. CT offers better sensitivity for evaluating the effect of such cysts on neighboring viscera and particularly on the intestine. CT is also better for identification of the fatty components indicative of dermoid or chylous cysts. These rare tumors are almost always benign, and a combined modality imaging approach based on ultrasound and CT suffices for diagnosis.

Adult↗
PubMed1987

[Value of angioscanography in the morphologic exploration of hypophyseal adenomas].

Considerable progress has been made in the morphologic study of pituitary due to the availability of angioscan programs. An exceptional case is presented of a persistent intrasellar trigeminal artery associated with prolactinoma. Based on technological progress in CT scan imaging the place of angiographic explorations in the investigation of pituitary adenoma is reconsidered.

Adenoma↗
PubMed1986

Hepatic adenomas and focal nodular hyperplasia: dynamic CT study.

A retrospective, multi-institutional study was carried out on a series of 50 histologically proved benign hepatic tumors. The 27 hepatic adenomas (HAs) and 23 cases of focal nodular hyperplasia (FNH) were studied with ultrasonography (US) and dynamic computed tomography (CT). Angiography was performed in 26 cases (15 HAs, 11 FNHs); scintigraphy was not used because of its cost. US scans proved nonspecific. CT scans demonstrated hemorrhage in five HAs and were useful in characterizing tumoral vascularity and any intratumoral features such as necrosis or central fibrous scar. The presence of arterial vessels (five patients) in the projection of this central fibrous scar is suggestive of FNH. Dynamic CT scans did not show the type of tumor in most cases. In cases with lesions greater than 3 cm for which doubt as to the diagnosis persists, combined use of morphologic data, scintigraphy, dynamic CT scanning, and angiography can guide the therapeutic decision: surgery or follow-up CT study after use of oral contraceptives is stopped.

Adenoma↗
PubMed1985

CT and US findings in pancreatic ductal tumours. A report of an unusual case and review of the literature.

Pancreatic cystadenomas and cystadenocarcinomas are rare tumours usually occurring in women. The first symptoms are pain, occasionally associated with a palpable tumour in the left upper quadrant, and in rare cases the clinical and laboratory findings are suggestive of a pseudocyst. US shows a cystic neoplasm with a wall enclosing several polypoid areas. CT allows the diagnosis of the type of septa within the cyst and shows the extension of the lesion and calcifications into the wall. It also permits the assessment of the probable pathological complications associated with the tumour; therefore CT cannot differentiate cystadenoma from cystadenocarcinoma. The analysis of these different phenomena is based on one observation and a review of the literature.

Cystadenocarcinoma↗
PubMed1984

Cavernous sinus syndrome due to lymphoma.

In both the cases described, painful ophthalmoplegia was the first indication of infiltration of the cavernous sinus by a lymphosarcoma. The onset of symptoms and the course of the disease were different in the two cases. CT scan which has been the crucial investigation for detecting lymphomas in the cavernous sinus, was normal in the early stages. Symptomatic remission could be obtained with treatment, although the prognosis remained poor.

Aged↗
PubMed1984

Single photon emission computed tomography (SPECT), planar scintigraphy, and transmission computed tomography: a comparison of accuracy in diagnosing focal hepatic disease.

A prospective evaluation of conventional planar scintigraphy (PS), single photon emission computed tomography (SPECT), and transmission computed tomography (TCT) was performed in 98 patients with suspected focal hepatic disease (FHD). The three examinations were performed on the same day. TCT had slightly higher sensitivity (91%) and specificity (96%) than either PS or SPECT. The sensitivity and specificity of TCT was also higher than that of the combination of PS and SPECT, which was more accurate than either radionuclide technique alone, with a sensitivity of 85-87% and a specificity of 90%. These differences were not statistically significant. However, receiver operating characteristic (ROC) analysis showed that the performance of TCT was significantly better. The ROC curves also showed, without statistical significance, that SPECT appears to have better diagnostic accuracy than PS and that it seems desirable to complement SPECT imaging with PS views, to reduce the number of equivocal results.

Adult↗
PubMed1984

[Lymphoma of the kidney. Value of echography and x-ray computed tomography].

The most frequent site of involvement of the urinary tract by lymphomas is the kidney (68% of lesions, mainly secondary). Thirteen cases are described (2 Hodgkin's disease and 11 non-Hodgkin lymphomas, 2 of which were primary lesions). All 13 patients were investigated by ultrasound; 10 were also investigated by CT. Both solitary and multiple lesions were observed for these 13 patients: 8 cases of multinodular lesions (including 1 false negative sonogram), 4 cases of continuous spread from retroperitoneal nodes, 4 cases of a nodular lesion or solitary tumor, and 2 cases of an infiltrating lesion. Bilateral lesions were seen in 6 cases, and existed in the presence of concomitant hepatic (5 cases) or splenic lesions (4 cases). Comparison of the value of ultrasound and CT scanning over a period of time was performed for 6 patients: there was concordance of findings for 3 cases, better sensitivity with CT in 2 cases, and better sensitivity with ultrasound in 1 case. The general characteristics and the imaging of renal lymphomas along with the renal complications of lymphomas and complications resulting from treatment are discussed.

Humans↗
PubMed1984

[Computed x-ray tomography of abdominal lipoma and liposarcoma in adults. Apropos of 9 cases].

CT scans were performed in 9 patients with fatty tumors of the abdomen: 2 lipomas and 7 liposarcoma. Of primary retroperitoneal origin, five tumors had extended intraperitoneally. Scanning images typical for each type of tumor are described: lipomas are very hypodense and well circumscribed, with thin intratumoral septa; liposarcomas are less hypodense and contain thick septa which may coalesce and form large nodules. Scanner imaging provides precise data on tumor extension and allows early detection of recurrences of these fatty tumors.

Abdominal Neoplasms↗
PubMed1983

[Chronic vomiting disclosing a pheochromocytoma].

Emesis is a common symptom in pheochromocytoma. It occurs in 26% of cases with permanent secretion, and 43% of cases with paroxystic secretion. Emesis may be the initial manifestation as in the present report of a 54-year-old female patient. For more than 15 years she experienced emesis which was ascribed to biliary dyskinesia. Bilateral pheochromocytoma was then diagnosed. With reference to this case, digestive manifestations of pheochromocytoma are reviewed.

Adrenal Gland Neoplasms↗