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Biomedical subjects

W M Thompson

Publications and source records attributed to W M Thompson.

At least 127 records · Page 7Linked to original sources

Lymphoid follicular pattern of the colon in adults.

The clinical and radiographic findings of the colonic lymphoid follicular pattern in 37 adults aged 20-79 years were evaluated. An incidence of 13% was found on review of 100 consecutive double-contrast barium enemas. Usually, the presence of multiple 1-3 mm diam, uniform-size nodules is sufficiently characteristic to make a presumptive diagnosis on these radiographic criteria. The nodules are often not visible endoscopically. The clinical data suggest that that the lymphoid follicular pattern is usually of no clinical significance in adults. In most patients, its radiologic pattern can be distinguished from entities such as familial polyposis and early Crohn's disease, thus sparing the patient unnecessary further diagnostic evaluation.

Adult↗

CT of the esophagus: I. Normal appearance.

The thoracic esophagus is easily demonstrable throughout its entire length on thoracic computed tomography (CT). The soft tissue planes separating the esophagus from its adjacent mediastinal structures are normally distinct. Blurring or distortion of these tissue interfaces is a reliable indicator of disease. The normal CT anatomy of the esophagus and mediastinal relationships are described. Air in the esophagus is considered a normal finding.

Esophagus↗

CT of the esophagus. II. Carcinoma.

Thoracoabdominal computed tomography (CT) scanning was performed prior to treatment on 30 patients with proven carcinoma of the esophagus. Operative, bronchoscopic, and/or autopsy data were reviewed and showed that CT correctly identified the extent of medistinal spread in 27 patients and intraabdominal metastases in 22 patients. The ability of CT to reliably predict the extent of disease should help the surgeon and radiation oncologist plan optimal therapy.

Abdominal Neoplasms↗

The spectrum of small bowel melanoma.

Twenty-one patients with documented secondary small bowel involvement by malignant melanoma are reviewed. Roentgen mainfestations are discussed and illustrated. A vigorous diagnostic approach emphasizing enteroclysis is described. Clinical awareness and aggressive radiologic investigation are providing these patients with earlier surgical and adjuvant therapy, which appears to be leading to increased length of survival.

Adolescent↗

Extraperitoneal gas following nephrectomy: patterns and duration.

The amount and duration of extraperitoneal gas in normal patients after major renal operations have not been documented. This air may be difficult to separate from that owing to abdominal abscess and, therefore, can be a potential source of diagnostic error in the febrile postoperative patient. A prospective study was performed on 41 postoperative patients to determine the incidence, duration and pattern of extraperitoneal gas in patients undergoing renal operations. No patient had an abscess. Of the abdominal films obtained between 1 and 4 days postoperatively 92 per cent demonstrated gas, 71 per cent were positive between 5 and 8 days and 61 per cent were positive between 9 and 12 days postoperatively. Over-all, 34 of 41 patients had extraperitoneal gas demonstrated on the postoperative abdominal radiographs. Linear and bubbly patterns were demonstrated and, in many cases, the appearance was indistinguishable from that of an abscess. It is important that the benign nature of this postoperative gas be appreciated and not mistaken for an abdominal abscess.

Abdomen↗

Clinical use of transcatheter electrocoagulation.

Transcatheter electrocoagulation is an effective method of experimental vessel occlusion even in the presence of thrombocytopenia and heparinization. This technique was used to occlude 13 arteries in 3 patients. In vitro testing suggests that intra-arterial bipolar platinum electrodes may achieve the therapeutic objectives more rapidly and with less risk, but more investigative work is required.

Arteries↗

Chronic oesophageal stricture due to moniliasis.

A case of persistent oesophageal stricture due to moniliasis, which developed while the patient was symptomatic, is reported. The value and therapeutic implications of performing a repeat barium swallow even if the disease appears to be quiescent are discussed.

Adolescent↗

Late complications of abdominal aortic reconstructive surgery: roentgen evaluation.

During a 5-year period from 1969 to 1974, 53 (8.5%) of 631 patients developed late complications following abdominal aortic reconstructive surgery. Occlusion was the most frequent complication and occurred in 4%. Others included stenosis, false aneurysm, enteric fistula and infection. Late complications were demonstrated by roentgenographic methods. Angiography was the most valuable roentgen study. It is indicated in all patients suspected of having delayed complications except those with unstable life-threatening hemorrhage. Additional roentgenographic studies including the barium enema and barium meal may help make the diagnosis and exclude other entities. In any patient with an abdominal aortic graft and gastrointestinal bleeding, the diagnosis of an aorto-enteric fistula should be considered until otherwise proven.

Adult↗

Inflammation and necrosis of the transverse colon secondary to pancreatitis.

A variety of radiographically demonstrable colon abnormalities associated with pancreatitis are illustrated. Extensive changes of either localized or diffuse inflammation are more common than has generally been appreciated. Localized changes may mimic carcinoma. Transverse colon inflammation secondary to pancreatitis may be appreciated on plain abdominal radiographs and to better advantage with a contrast enema. This pattern is distinctive and suggests a severe underlying pancreatitis. A water soluble contrast enema is recommended if there is any evidence of colon necrosis or fistula. Recognition of all of the changes of pancreatitis may lead to earlier management of the severe complications.

Acute Disease↗