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Results for “Foreign-Body Reaction”

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At least 127 records · Page 7Linked to original sources
PubMed1977

Roentgenographic assessment of causes of cardiac pacemaker failure and complications.

Implantation of a permanent pacemaker to stimulate the heart is a well established procedure of great benefit. However, a malfunctioning pacemaker is a hazard to well-bing and to life. Once a pacemaker has been installed the physician's attention is directed not only to the patient's illness but also the unique complications of cardiac pacemakers. Roentgenograms are a valuable resource in the assessment of patients with pacemakers. It is essential that the radiologist thorougly understand the extent to which radiologic studies can depict the functioning of the complications associated with pacemakers. The roentgenographic assessment of the causes of pacemaker failure and the complications associated with permanent pacemakers are reviewed and the role of the roentgenogram is defined.

Bronchial Fistula↗
PubMed1977

Corneal foreign bodies of coconut origin.

Corneal foreign bodies of varied nature have been reported, however, vegetable foreign bodies in the cornea have seldom been described. A case is reported of a male from the Marshall Islands in the Pacific who retained a number of deep corneal foreign bodies after being struck in the eye by a piece of a coconut shell. The foreign bodies caused considerable inflammation which ceased after they were exposed and removed by means of a centrally based lamellar corneal flap. The patient's eye has remained quiet for 4 months following removal of the foreign bodies.

Adult↗
PubMed1977

The structure of mononuclear phagocytes differentiating in vivo. III. The effect of particulate foreign substances.

The response of mononuclear phagocytes to three inert particles--barium sulfate, talc, and thorium dioxide--was studied by correlated light and electron microscopy. All three particles induced maturation of the mononuclear phagocytes, which proceeded to the stage of the mature macrophage and required 7 to 9 days. Once established, maturation persisted as long as 45 days, as did the inert particles. The resultant lesions, dense aggregates of mature macrophages, were termed mature granulomas. The resultant maturation differed from that produced by digestible bacteria in tempo and extent but not in pattern.

Animals↗
PubMed1979

Schistosomiasis--cancer: etiological considerations. A review.

Evidence for a causal connection between Schistosoma haematobium-infection and carcinoma of the urinary bladder is discussed. A group relationship of schistosomiasis cancer to cancers as+sociated with asbestosis, foreign body implants, and cicatrization is suggested on the basis of several criteria. Results of experimental foreign body tmuorigenesis in mice are presented and elaborated in relationship to schistosomiasis cancer. Carcinogenic development at the cellular level is discussed with emphasis on the essential role of tissue-environmental conditions, especially fibrotic changes and macrophage quiescence.

Adult↗