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Biomedical subjects

P Grelet

Publications and source records attributed to P Grelet.

At least 19 recordsLinked to original sources
PubMed1991

Diagnosis and categorization of small bowel neoplasms: role of computed tomography.

A retrospective study of 35 patients with small bowel neoplasms studied by computed tomography (CT) was performed. The tumor detection rate was 80%. Using the findings reported in the literature, an adequate histological diagnosis could be performed in 69% of the cases by CT. Lipomas, leiomyomas, leiomyosarcomas, and carcinoid tumors were well-recognized, but adenocarcinomas and lymphomas were often mistaken one for the other. An accurate preoperative staging was performed in 61% of the cases. CT failed to detect 75% of the invaded lymph nodes, 25% of the liver metastases, and 25% of the tumoral growth beyond the bowel wall. Despite major limitations in preoperative staging, a good detection rate and some features allowing a specific diagnosis advocate using CT along with the barium examination when clinical history suggests a small bowel tumor.

Adenocarcinoma↗
PubMed1991

[Multiple pitted nodule images in AIDS. Apropos of a case].

A new semiological aspect of Pneumocystis carinii pneumonia is reported in an AIDS patient. This pneumopathie is unusual because of its pitted nodules and its occurrence in a patient under prophylactic aerosol pentamidine therapy.

Acquired Immunodeficiency Syndrome↗
PubMed1989

[Diagnosis of bilateral secondary tumors of the kidney. Contribution of cytology. Apropos of 2 cases].

The authors report bilateral secondary tumors of the kidney in two patients: one previously treated for an epidermoid tumor, the other for an anaplastic bronchial tumor. In both patients, clinical and radiological features were those of a malignant process. Scan-guided percutaneous fine needle aspiration provided the material necessary to make a definitive cytological diagnosis; it was thus possible to assess the malignancy and recognize the histological type of lesions.

Adult↗
PubMed1989

[Delayed duodenal perforation caused by transhepatic biliary endoprosthesis].

Three cases of duodenal perforation which occurred after the placement of a biliary endoprosthesis, are reported. One intraperitoneal perforation required an immediate surgical intervention. The two other cases have been treated endoscopically and by transhepatic drainage, respectively. The mechanism of this delayed complication is discussed and the impact caused by the shape of the Carey-Coons endoprosthesis (Porges-Roche) analysed.

Aged↗
PubMed1988

Bronchogenic carcinoma staging: CT versus MR imaging. Assessment with surgery.

One hundred and twenty patients with bronchogenic carcinoma were prospectively studied by both computed tomography (CT) and magnetic resonance imaging (MRI) during the 2 weeks preceding thoracotomy or mediastinoscopy. MRI scans included contiguous axial and coronal slices. Results of CT and MRI studies were compared with the surgical and pathological findings on the basis of the TNM classification. Although no significant difference was found between the two imaging methods for the evaluation of tumour extent, MRI appears to be a valuable imaging technique for left upper lobe and apical neoplasms. Comparison between the two techniques for mediastinal node evaluation showed that sensitivity of MRI is superior to CT in the left paratracheal, aortopulmonary and subcarinal node areas.

Adult↗
PubMed1987

[Left adrenal pseudomass. Apropos of a case of splenorenal anastomosis by the vein of the left pillar of the diaphragm].

A case of hepatocarcinoma on cirrhosis with portal hypertension is described. The anatomy of splenorenal anastomoses and their ultrasound and CT scan imaging characteristics are reviewed, and the interest of differential diagnosis from adrenal masses emphasized. Its importance is enhanced by the fact that the portal hypertension may be unrecognized as in the present case. Diagnostic effectiveness of ultrasound and CT scan imaging is discussed.

Adrenal Gland Neoplasms↗
PubMed1987

[Role of lymph node cytopuncture in the evaluation of cancers of the prostate and bladder].

Lack of reliability of lymphography and morbidity associated with lymphadenectomy lead authors to use lymph node puncture-cytology in assessment of the state of the pelvic nodes in evaluating carcinomas of the bladder and prostate. 38 patients were thus investigated (21 CA prostate and 17 bladder tumours). In 83% of cases the material collected was uninterpretable. Proof of a lymph node metastasis was obtained in 15 cases. 23 cases were further evaluated at surgery, confirming the absence of false positives. 3 false negatives would raise the question of the limitations of the method. The absence of complications would appear to justify this harmless method, with the potential of increasing its reliability by puncture of the majority of opacified nodes regardless of their radiological appearance.

Aged↗
PubMed1986

[Intra-abdominal pseudotumorous panniculitis. CAT scan aspects of a case localized in the greater omentum].

Intra-abdominal panniculitis is an inflammatory and necrotic reaction to local, general or undetermined aggressions to intra- or retro-peritoneal fatty tissue. A case localized to the greater omentum is described and findings on CT scan imaging reported: encapsulated, heterogeneous mass of fatty density with fibrous bands and with fascial thickenings. Diagnosis is based mainly on histopathology, the CT scan being incapable, despite the clinical context, of formally rejecting a diagnosis of liposarcoma.

Adipose Tissue↗