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Biomedical subjects

H Siegel

Publications and source records attributed to H Siegel.

5 recordsLinked to original sources

Increase and decrease in formic acid concentration in urine samples stored at room temperature.

Formic acid concentrations are not stable in urine samples stored at room temperature. Formic acid may increase or decrease due to bacterial contamination. Enterococci and E. coli produce formic acid under anaerobic conditions at pH values of more than 6.0. In urine sample stored at room temperature, E. coli caused a decrease in formic acid. The main substrate of formic acid formation by bacteria seems to be citric acid. Formic acid in urine is stable at room temperature for at least 7 days when concentrated acetic acid (50 microliters/10 ml) or 50 g/l thymol in isopropanol (50 microliters/10 ml) is added.

Acetates

The latex agglutination test in virus diagnostic: identification of poliomyelitis and coxsackie viruses.

We examined the practical value of the Latex agglutination test (LA test) in diagnostic virology. Viruses isolated from 125 specimens were identified in the LA test. All results were in agreement with those observed by a neutralization test. The LA test appears to be superior to conventional methods because of its easy handling and a rapid and reliable identification.

Cytopathogenic Effect, Viral

Histologic diagnosis of sodomy.

A case of homicidal strangulation with sodomy is presented. Without the use of a simple routine histologic technique, the diagnosis of sodomy could not have been unequivocally substantiated.

Female

Percutaneous aspiration of adrenal cysts.

Percutaneous needle aspiration was performed in three cases of cystic lesions of the adrenal gland which had been evaluated with nephrotomography, ultrasound, and angiography. The characteristics of the fluid aspirate were used as a guideline to further management. Two lesions were clearly benign cysts and were treated conservatively. The third lesion had a bloody aspirate and was surgically removed. The diagnostic evaluation of adrenal masses should follow a directed approach currently advocated for renal mass lesions.

Adrenal Gland Diseases

On the significance of posterior crico-arytenoid muscle hemorrhage.

Sixteen cases of gross fresh PCA muscle hemorrhages were collected from a series of 1500 medicolegal autopsies consecutively performed by the authors, an incidence of about 1%. These hemorrhages occurred in cases of deaths resulting from a variety of causes, including natural disease, physical agents and drugs. In none of the cases was there any evidence of external trauma to the neck. In two cases endotracheal intubation had been performed; however, the lack of injury to the tissues between the tube and the muscles probably rules this factor out. In over 50% of the cases, PCA muscle hemorrhages were found in association with "asphyxial" petechial hemorrhages. A consideration of our findings and a study of the literature points out that before considering any individual case of PCA muscle hemorrhages as resulting from direct trauma, additional evidence is needed.

Adult