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Biomedical subjects

J J McCort

Publications and source records attributed to J J McCort.

12 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↗
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↗