(A, B) Mature proglottids of T. saginata. Injection of India ink into the genital pore in figure B helps with the visualization of the primary lateral uterine branches. Note the number of branches (>12). (C) Cross-section of a proglottid of Taenia spp, stained with hematoxylin and eosin (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. (D) Higher magnification of figure C 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 visible with fine focusing of the microscope. (E) Close-up of a cross-section of a Taenia spp proglottid stained with H&E, showing numerous calcareous corpuscles (yellow arrows). (F) Close-up of a cross-section of a Taenia spp proglottid stained with H&E, showing numerous calcareous corpuscles.
