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Biomedical subjects

B A Friedman

Publications and source records attributed to B A Friedman.

At least 55 records · Page 3Linked to original sources
PubMed1976

Coccidoidouria: clinical significance.

Twelve patients had urine cultures positive for Coccidioides immitis. Ten patients showed the usual criteria for dissemination, but 2 were believed, before urine culture, to have only chronic pulmonary involvement. In 8 patients, there was impairment of host defense mechanisms due either to associated disease or immunosuppressive drug therapy. Only 2 of 11 patients tested reacted to coccidioidin skin-test antigen. Colony counts of C. immitis in the first voided morning urine spacimens ranged from 0.03/ml to 17/ml. With prostatic involvement, colony counts in the expressed secretions ranged from 15/ml to 120/ml. The site of urinary tract coccidioidomycosis, which could be adduced in 9 patients, was the upper tract in 1, lower tract in 6, and in both upper and lower tracts in 2. In patients with lower tract infection, the prostate was involved in 4 and the epididymis in 2.

Adult↗
PubMed1975

Rheumatoid nodules of the larynx.

The clinical presentation and histologic appearance of three cases of laryngeal rheumatoid nodules are the subject of this report. In one of these cases, the lesions differed from the classic appearance of the rheumatoid nodule in that they were strongly reminiscent of granulation tissue or a pyogenic granuloma. These vascular lesions are interpreted as immature rheumatoid nodules. Although there are no clinical clues that would lead to the preoperative diagnosis of rheumatoid nodule of the vocal cord and larynx, the index of suspicion should be high in patients with rheumatoid arthritis who are hoarse. However, overt joint symptoms do not appear to be a necessary concomitant of these lesions.

Arthritis, Rheumatoid↗
PubMed1975

Roentgenographically atypical Pneumocystis carinii pneumonia.

Two patients with renal transplants were admitted for evaluation of fever. During the course of hospitalization both had hectic fever and arthralgia. Pulmonary symptoms were absent or minimal. In one patient the admitting chest roentgenogram was entirely normal and in the other only a small focal abnormality was apparent. Hypoxemia occurred even in the presence of normal or nearly normal chest roentgenograms. The diagnosis of Pneumocystis carinii infection was made by bronchoscopic brush biopsy in both patients. Therapy with pentamidine isethionate was successful. It is suggested that in patients with renal transplants and in others with similar immonosuppression, even with a normal chest roentgenogram, Pneumocystis carinii infection be considered as the cause of a fever of unknown origin. This should be evaluated initially with blood gas studies; if these are abnormal, further studies, including biopsy, are justified.

Adult↗
PubMed1975

Dissecting aneurysm of coronary artery associated with drug abuse and pulmonary lesions.

A dissecting aneurysm of the coronary artery (DACA) associated with cystic medial necrosis was discovered during the necropsy of a 32-year-0ld black man with evidence of intravenous drug abuse. Microscopic examination of the lungs revealed striking angiomatoid conversion of pulmonary arterioles. The cause of death and the possible relationship between the pulmonary vascular lesions and the DACA are discussed.

Adult↗
PubMed1969

Structure of exocellular polymers and their relationship to bacterial flocculation.

Several gram-negative, polarly flagellated rods were isolated on the basis of their flocculent growth habit. Some of the isolates possessed a capsular matrix which is composed of exocellular fibrils. Other isolates did not appear to have a capsular matrix when examined with a bright-field microscope with or without the aid of stains. However, these latter type isolates did possess exocellular material which can be demonstrated by adsorption of a fluorescent dye under an ultraviolet microscope. Electron microscopic examination demonstrated that the exocellular material around all isolates examined is fibrillar. The fibrils were susceptible to cellulase although all fibrils did not appear to be identical. It is postulated that the exocellular polymers were responsible for the flocculent growth habit of the bacteria, and that the process of bacterial flocculation produced by synthetic polyelectrolytes was essentially the same as that caused by naturally produced exopolymers.

Bacteria↗