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Biomedical subjects

S Fields

Publications and source records attributed to S Fields.

158 records · Page 9Linked to original sources

CT findings in visceral leishmaniasis mimicking lymphoma.

A case of visceral leishmaniasis (Kala-Azar) is presented which clinically and on CT examination mimicked lymphoma. The value of the recognition of the previously unreported CT findings of visceral leishmaniasis is discussed.

Adult↗

CT appearance of primary pleural lymphoma.

We report a case of primary pleural lymphoma. The CT appearance was of hemorrhagic pleural effusion with thickened membranes. The CT evaluation of pleural disease is discussed.

Adult↗

Renal cell carcinoma metastatic to the ovary. Ultrasound and CT appearance.

Three years following nephrectomy for renal cell carcinoma, a 54-year-old woman presented with symptoms secondary to ascites, and a large left adnexal mass. A large predominantly cystic, partially solid, septated mass with thick irregular margins was found on ultrasound and computed tomography scans. Pathological examination revealed renal cell carcinoma identical to the original tumor. The etiology and appearance of metastatic disease to the ovary are discussed.

Ascites↗

Retrocrural splanchnic nerve alcohol neurolysis with a CT-guided anterior transaortic approach.

Retrocrural splanchnic nerve alcohol neurolysis with a CT-guided anterior transortic approach, a new method for splanchnic block alleviation of chronic abdominal pain, is described. Ten patients with chronic abdominal pain requiring narcotic treatment, six with pancreatic carcinoma, one with gastric carcinoma, two with chronic pancreatitis, and one with pain of unknown etiology, were referred for splanchnic nerve neurolysis. With CT guidance, a 20 gauge needle was placed through the aorta into the retrocrural space at T11-T12, and 5-15 ml 96% alcohol was injected into the retrocrural space. Following the procedure, 6 of 10 patients were pain free, 2 patients had temporary pain relief, and 2 patients were without response. There were no significant complications. CT-guided anterior transaortic retrocrural splanchnic nerve alcohol neurolysis is technically feasible, easier to perform than the classic posterolateral approach, and may have less risk of complications. The success rate in this initial trial was reasonable and, therefore, this technique provides an additional method for the treatment of abdominal pain.

Abdominal Pain↗

CT-guided aspiration core needle biopsy of gastrointestinal wall lesions.

PURPOSE: The purpose of this work was to examine the accuracy and safety of CT-guided core biopsy of gastrointestinal wall lesions. METHOD: We reviewed over 1,200 CT-guided abdominal core biopsy results from 1989 through 1998. Forty-five were from gastrointestinal wall lesions (16 gastric, 3 duodenal, 7 small intestine, and 19 colon). RESULTS: A definitive histologic diagnosis was obtained from the core biopsy in 41 patients (91%) without complication. The gastric lesion diagnoses were mesenchymal tumor of smooth muscle origin (eight), lymphoma (one), adenocarcinoma (three), and normal (one). Duodenal core biopsy diagnoses were inflammation (one) and normal (one). Small intestinal core biopsy diagnoses were non-Hodgkin lymphoma (four), metastatic leiomyosarcoma (one), carcinoma (one), and tuberculosis (one). Colon core biopsy diagnoses were carcinoma (11), lymphoma (2), actinomycosis (2), granulomatous inflammation (1), metastatic squamous cell carcinoma (1), chronic abscess (1), and mesenchymal tumor of smooth muscle origin (1). CONCLUSION: Percutaneous CT-guided core needle biopsy from gastrointestinal wall lesions is safe and accurate, especially in submucosal lesions, and should be considered in selected cases with negative endoscopic biopsy or in which endoscopic biopsy is not possible.

Biopsy, Needle↗

Assessment of bony bridge by computed tomography: experimental model in the rabbit and clinical application.

A bony bridge was created in the growth plates of young rabbits. Weekly computed tomography (CT) scanning was done in the axial (transverse) plane for 3 weeks. Transverse histological sections from the plate area were examined after 3 weeks. The CT image showed the exact location and extent of the sclerotic bony bridge. The area of the bony bridge as a percentage of the plate was measured from the CT image. Good correlation was found between the CT image and the histological section. This technique has been applied to children, and three such examples show accurate assessment of the growth plate.

Animals↗

Percutaneous chemical lumbar sympathectomy with alcohol with computed tomography control.

Percutaneous chemical lumbar sympathectomy with alcohol (PCLSA) using computed tomography (CT) control was performed in 8 patients suffering from advanced peripheral arterial occlusive disease. PCLSA under CT guidance was found to be a simple and safe procedure. The use of CT control added precision in the guidance of needle placement. Positive results were obtained in all patients, without significant morbidity. PCLSA may be an alternative to surgical sympathectomy.

Adult↗