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Biomedical subjects

M G Baron

Publications and source records attributed to M G Baron.

At least 19 recordsLinked to original sources
PubMed1992

Influence of tobacco on laryngeal carcinoma in Spain.

Spain is one of the countries with the highest incidence of laryngeal cancer in the world. Many risk factors have been linked to this neoplasm, such as tobacco, alcohol and occupation. In order to evaluate the effect of tobacco, a case-control study was performed. Cases included 85 patients with cancer of the larynx diagnosed in La Paz, Madrid, between 1983 and 1988, whereas a sample of 170 patients from the same hospital was used as control. Our study revealed that tobacco was significantly associated with laryngeal cancer. Filter-tipped cigarette was shown to be a risk factor as well as consumption of non-filtered cigarettes at first followed by consumption of filter-tipped cigarettes. An association was found between laryngeal cancer and smoking more than 15 cigarettes a day, as well as between cancer of the larynx and being in the habit of smoking for more than 15 years.

Adolescent↗
PubMed1986

Circumflex retroesophageal right aortic arch simulating mediastinal tumor or dissecting aneurysm.

The authors present three cases of circumflex right aortic arch, a retroesophageal arch in which the aorta crosses from right to left behind the esophagus to descend on the left side. The findings on the frontal chest films resembled those of a left arch with mediastinal widening, simulating a mass. Aortography revealed four-vessel branching of the arch vessels, typical of right aortic arch with aberrant left subclavian artery. Computed tomography and barium studies of the esophagus demonstrated the retroesophageal course of the aorta. In two patients, obstruction of the thoracic portion of the left subclavian artery resulted in differences in blood pressure and pulse between the arms, supporting the clinical impression of dissecting aortic aneurysm.

Adult↗
PubMed1984

Oblique hilar tomography and mediastinoscopy. A correlative prospective study in 100 patients with bronchogenic carcinoma.

One hundred patients with bronchogenic carcinoma had oblique hilar tomography preoperatively to evaluate the pulmonary hila. Subsequently, all of these patients underwent mediastinoscopy or thoracotomy or both. Hilar and mediastinal nodes were evaluated for the presence of metastasis. These findings were then correlated with the radiographic findings of oblique hilar tomography. We found oblique hilar tomography to be a useful method of selecting patients for mediastinoscopy. The negative predictive value of oblique hilar tomography for mediastinal involvement was 95 percent, while the positive predictive value was 75 percent. Thus, patients with negative findings on oblique hilar tomography need not undergo mediastinoscopic examination prior to thoracotomy.

Adult↗
PubMed1984

Thoracic findings in gastrointestinal pathology.

A large variety of gastrointestinal and abdominal pathologic processes can be diagnosed or suspected by their direct effects on the chest. The chest radiograph, as often the first admission film, can aid the radiologist in recommending the appropriate follow-up examinations.

Adult↗
PubMed1983

Case of the day.

Explore the source record for details and available documents.

Aged↗
PubMed1980

Positive contrast ventriculography combined with computed tomography: technique and applications.

Injection of contrast material (melgumine iothalamate or metrizamide) into the cerebral ventricles, or into an intracranial cyst directly or through a shunt device, has proven to be of considerable value in the evaluation of hydrocephalus, localized or diffuse, and intracranial cysts. When combined with computed tomography (CT) of the brain (positive contrast CT ventriculography), these procedures become simpler to perform, the incidence of complications is less, and there is a significant increase in their diagnostic yield.

Adolescent↗
PubMed1979

Hydrops of the gallbladder in a child: diagnosis by ultrasonography.

Hydrops of the gallbladder is a rare cause of right upper quadrant mass in children. A case of acute hydrops of the gallbladder in a 5-year-old child is reported. A specific and accurate diagnosis can be made preoperatively only by sonography. Characteristic sonographic findings are described.

Child, Preschool↗
PubMed1977

Echocardiography of double outlet right ventricle: new diagnostic criteria.

A thick band of muscular tissue interposed between the posterior aortic wall and the anterior leaflet of the mitral valve could be indentified on M-mode sweeps of 3 patients with double outlet right ventricle. A discrete subaortic crista supraventricularis, continuous with the anterior wall of the right ventricle, could also be identified. These signs are specific for double outlet right ventricle and are not present in other anomalies of the heart.

Adult↗
PubMed1976

Multiple lymphangiomas of the neck, axilla, mediastinum, and bones in an adult.

Whereas lymphangiomas of the neck, axilla, or mediastinum are not uncommon in children, they are rarely found in the adult, and primary lymphangioma of bone is very rare. The authors report a case of multiple lymphangiomas of the neck, axilla, mediastinum, and bones in a 34-year-old man, which they believe to be only the second such case reported thus far.

Adult↗