Fertilized egg of Ascaris lumbricoides in an unstained wet mount of stool, 200x magnification. A larva is visible in the egg.

Schistosoma mansoni eggs are large (114 to 180 µm long by 45-70 µm wide) and have a characteristic shape, with a prominent lateral spine near the posterior end. The anterior end ...

Cyst are oval to ellipsoid and measure 8-19 µm (average 10-14 µm). Mature cysts have 4 nuclei, while immature cysts have two. Nuclei and fibrils are visible in both iodine-stained ...

Cysts of Entamoeba coli are usually spherical, but may be elongated, and measure 10 to 35 µm. Mature cysts typically have 8 nuclei but may have as many as 16 or more. Entamoeba coli ...

Fungal spore in concentrated wet mounts of stool. Such spores may be confused for protozoa such as Giardia or Chilomastix .

In direct smears it is difficult to recognize oocysts as they are small (4-6 µm in diameter). Oocysts contain 1-6 dark granules. By focusing up and down, it is possible to see a ...

Cyst of E. histolytica/E. dispar in an unstained concentrated wet mount of stool. Notice the chromatoid bodies with blunt, rounded ends (arrow).  

how can we differentiate between T.saginata(Beef) and T.solium (Pork) The eggs of these two species cannot be differentiated, If differentiation is required, an examination of a gravid ...

The eggs of Schistosoma haematobium are large (110-170 µm long by 40-70 µm wide) and bear a conspicuous terminal spine. Eggs contain a mature miracidium when shed in urine.