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[Taenia saginata] [T. solium]

Cross-sections of proglottids of Taenia spp., stained with hematoxylin and eosin (H&E).

A	B

A, B:  Cross-sections of a proglottid of Taenia sp., stained with H&E.  Note the thick outer tegument and the loose parenchyma filling the body.  Calcareous corpuscles (red arrows), characteristic of the cestodes, can be seen in the parenchyma. Eggs (blue arrows) can also be seen.  Images courtesy of the Washington State Public Health Laboratories.

C	D

C, D:  Higher magnification of the image in Figure B, showing a close-up of the eggs.  Note the characteristic striations, typical for the taeniids.  Not visible in these images are the hooks commonly seen in cestode eggs.  Hooks do not stain with H&E but are refractile and are visible with fine focusing of the microscope.

E	F

E:  Close-up of a cross-section of a Taenia sp. proglottid stained with H&E, showing numerous calcareous corpuscles (yellow arrows).  Image courtesy of the Michael E. DeBakey V. A. Medical Center in Houston, TX.
F:  Close-up of a cross-section of a Taenia sp. proglottid stained with H&E, showing numerous calcareous corpuscles.  Image courtesy of Ameripath.