Accession Number : AD0768822

Title :   Zur Differential-Diagnose von Parasiten 'Zysten' in Herzmuskelfasern (Differential Diagnosis of Parasitic 'Cysts' in Myocardial Fibres),

Corporate Author : ROBERT KOCH-INSTITUT BERLIN (WEST GERMANY)

Personal Author(s) : Salfelder,K. ; Werner,H. ; Leon,A. ; deLiscano,T. R.

Report Date : 1969

Pagination or Media Count : 11

Abstract : A description of the main morphological features permitting the differentiation between Sarcosporidia, Trypanosoma cruzi (leishman bodies) and Toxoplasma gondii in myocardial fibres is given: The cysts of Sarcosporidia contain spores of bolong and sometimes crescent shape, which are arranged in distinct compartments. The leishman bodies of T. cruzi found in 'pseudocysts' vary in size and shape depending on their stage of development; they are characterized by the rod-like kinetoplast, which may not be clearly discernible in tissue sections stained with hematoxylin. The cysts of T. gondii may be either round or oblong in shape and vary in size. Their membranes are formed by the parasites, and may exhibit protrusions. The parasites are small and of rather uniform round shape, their nuclei staining distinctly with hematoxylin. In the proliferating stage, the nests of T. gondii vary in size and shape, too, but the single parasites are clearly separated from each other. The parasitic manifestations listed may or may not be attented by myocarditis. In areas where Chagas' disease is endemic, the possibility of a Toxoplasma infection should be considered. (Modified author abstract)

Descriptors :   (*PARASITES, *HEART), MORPHOLOGY(BIOLOGY), SPOROZOA, PROTOZOA, ZOOMASTIGINA, TOXOPLASMA, PATHOLOGY, HISTOLOGY, WEST GERMANY, VENEZUELA

Subject Categories : Medicine and Medical Research
      Microbiology

Distribution Statement : APPROVED FOR PUBLIC RELEASE