Search PubMed⌕ Search

Biomedical subjects

J J McCort

Publications and source records attributed to J J McCort.

18 recordsLinked to original sources
PubMed1990

Amebic liver abscess: review of twenty-nine cases with an evaluation of imaging techniques.

Twenty-nine patients with amebic liver abscess were reviewed retrospectively. In twenty-six of twenty-eight patients, ultrasonography demonstrated the abscess. An elevated indirect hemagglutination titre confirmed the diagnosis in twenty-seven of twenty-eight patients. All patients recovered with specific chemotherapy. In evaluating clinically suspected amebic liver abscess, ultrasonography is a cost-effective, readily available, and reliable imaging method. If needed, computed tomography provides confirmation. Needle aspiration or catheter drainage have questionable value unless the diagnosis is in doubt or extrahepatic spread is present. The indirect hemagglutination test shows an elevated titre in most patients with liver infestation. By inducing a prompt recovery, antiamebic chemotherapy can confirm a suspected clinical diagnosis.

Adult↗
PubMed1987

Caring for the major trauma victim: the role for radiology.

Two innovations have improved the care of the major trauma victim in the past 20 years. Both depend on active radiologist participation. The first has been the progressive nationwide development of the Emergency Medical Service System, which identifies trauma centers by a process of categorization, regionalization, and verification. The hospital must be staffed and equipped to perform computed tomography, angiography, and sonography. Trauma centers effectively reduce morbidity and mortality of the accident patient. The second innovation has been the intensive use of computed tomography (CT) for immediate patient evaluation. CT surpasses other imaging methods in examination for craniocerebral, abdominal, spinal, pelvic, and facial trauma. In craniocerebral trauma, the precise diagnosis afforded by CT reduces the fatality rate by permitting early surgical intervention. In abdominal trauma, CT examination supports nonoperative management of hemodynamically stable patients with solid organ injury. In spinal, pelvic, and facial injuries, CT provides diagnostic information not available with conventional radiography.

Emergency Medical Services↗
PubMed1986

The cupola sign of pneumoperitoneum in the supine patient.

Free air within the peritoneal cavity can be recognized on supine abdominal films by identification of the median subphrenic space. We have termed this the "cupola sign." In a review of 100 patients with pneumoperitoneum, this sign was seen in 6 patients. In 3 instances it was the only manifestation of a pneumoperitoneum and in 3 instances it was seen in association with air below the right and left diaphragmatic leaves.

Humans↗
PubMed1984

Computed tomography in thoracoabdominal trauma.

UNLABELLED: This study evaluates our experience with CT scanning in thoracic and abdominal trauma. It was designed to analyze the accuracy and usefulness of CT with regard to: a) type of trauma, b) location of injury, c) timing of scanning, d) timing of operative intervention, e) confirmatory findings, and f) ultimate patient outcome. Between 1978 and 1983, 2,069 CT scans were performed for trauma in our institution, of which 122 were abdominal and ten thoracic, in 98 patients. Thirty-one of these patients had operation or autopsy confirmation of the findings; for 11 patients subsequent CT was available. Abdominal scanning was positive in 48 patients. The organs most commonly injured were spleen (17 patients), pancreas (nine), kidney (11), and liver (eight). Two pancreatic scans were initially interpreted as negative, but in retrospect definite abnormalities were present. CONCLUSIONS: 1) Thoraco-abdominal CT scanning documents injury to the liver, spleen, kidney, and retroperitoneum with a high degree of accuracy. 2) CT is most useful in stable trauma patients without obvious indications for laparotomy but with abnormal findings requiring explanation. 3) CT scanning is useful in evaluating patients for delayed complications following trauma. 4) Attention to details of technique and clinical correlation are essential to avoid misinterpretation of thoracoabdominal CT scans, especially of the pancreas. 5) Use of CT scans may assist in the safe, nonoperative management of selected patients with injury limited to solid organs.

Abdominal Injuries↗
PubMed1983

Perirenal fat infiltration by hemorrhage: radiographic recognition and CT confirmation.

In a review of the abdominal radiographs of 82 patients with renal trauma and hemorrhage, perirenal fat infiltration occurred in 12 and was manifested by a streaked and mottled density of the fat envelope. Computed tomographic studies confirmed that the radiographic changes resulted from blood penetrating the fat and coating the inner surface of the renal fascia. Although perirenal fat infiltration by hemorrhage is an uncommon finding in renal laceration, it may serve as confirmatory evidence when other diagnostic signs are present.

Adipose Tissue↗
PubMed1980

Hepatic and perihepatic radiolucencies.

Radiolucencies in and around the liver may be caused by normal or abnormal accumulations of fat or gas. Computed tomography, which measures the differential photon absorption of tissue more accurately than does abdominal radiography, readily demonstrates interfaces between the liver and air or fat. The correlation of these two modalities in detecting and identifying hepatic radiolucencies is explored.

Adipose Tissue↗
PubMed1978

Plain film diagnosis of perirenal hemorrhage.

The authors describes the plain film radiographic changes due to traumatic, perirenal hemorrhage in 43 patients. The direct effect of the hematoma: (1) partially or completely obscures the kidney; (2) usually obscures adjacent lumbar muscles, and (3) often produces a tilt of the lumbar spine to the affected side. The mass effect of the hematoma displaces adjacent organs and varies with its supra- or inframesocolic position.

Hematoma↗
PubMed1976

Intraperitoneal and retroperitoneal hemorrhage.

Besides blunt and penetrating trauma, many diseases spontaneously produce abdominal hemorrhage. Here the term "spontaneous" implies the lack of observable injury, but the likelihood that unrecognized trauma initiates blood loss which continues unabated when clotting factors are absent or depleted. Survival of the patient often depends on rapid and accurate diagnosis.

Adenocarcinoma↗
PubMed1975

Ruptured corpus luteum with hemoperitoneum.

Rupture of the corpus luteum in a young woman can cause massive hemoperitoneum, seen as free fluid in the flanks and pelvis on abdominal films. Radiographic examination alone cannot distinguish hemorrhage due to a ruptured corpus luteum or ectopic pregnancy from pus due to a ruptured appendix or a tubo-ovarian abscess; however, the presence of nonclotting blood on culdocentesis excludes abdominal sepsis. If these symptoms and findings occur during the latter half of the menstrual cycle in a young woman of low parity who has a normal menstrual history and a negative pregnancy test, a ruptured corpus luteum is a more likely diagnosis than ectopic pregnancy.

Abdomen↗
PubMed1975

Plain film diagnosis of retrocecal appendicitis.

The plain radiographic findings encountered in 21 patients with acute retrocecal appendicitis were analyzed. In descending order of frequency, the following changes were noted: (a) edema infiltration of properitoneal fat; (b) mass between properitoneal fat and ascending colon; (c) a coprolith above the anterior superior iliac spine; (d) gas in the appendix; (e) haustral irregularity of the ascending colon; and (f) retrocecal extraperitoneal gas.

Adolescent↗
PubMed1966

Percutaneous transhepatic cholangiography. Report of a technique.

Percutaneous transhepatic cholangiography was carried out in 30 patients with jaundice of unknown cause. The examination was successful in 24, and the correct diagnosis was established before operation in 23. Among the specialized radiographic procedures useful in the differential diagnosis of jaundice, the percutaneous transhepatic cholangiogram is simple and reliable. It will distinguish intrahepatic from extrahepatic biliary obstruction. In benign structures, it can give a good anatomical and pathological definition of the problem which faces the surgeon. Occasionally, it may make operation unnecessary. Serious complications are hemorrhage and bile peritonitis. The incidence is low and by careful management they can be avoided.

Biliary Tract Diseases↗