Practical Protozoa Prof Dr Gamal Allam Cysts Entamoeba

Practical Protozoa Prof. Dr. Gamal Allam

Cysts Entamoeba histolytica Line drawing of an E. histolytica cyst E. Histolytica cyst in a concentrated wet mount stained with iodine. Prof. Dr. Gamal Allam

Cyst Entamoeba histolytica E. histolytica cysts stained with trichrome. Two to three nuclei are visible in the focal plane (black arrows), and the cysts contain chromatoid bodies with typically blunted ends (red arrows). Prof. Dr. Gamal Allam

Trophozoite Entamoeba histolytica Line drawing of an E. histolytica trophozoite in a direct wet mount stained with iodine Prof. Dr. Gamal Allam

Trophozoite Entamoeba histolytica E. histolytica trophozoite, stained with trichrome. Trophozoite of E. histolytica with ingested erythrocytes stained with trichrome. The ingested erythrocyte appears as a dark inclusion. Prof. Dr. Gamal Allam

Amastigotes Leishmania tropica macrophage is practically filled with amastigotes (arrows) Prof. Dr. Gamal Allam amastigotes are being freed from a rupturing macrophage.

Blood film showing erythrocytic stages of Plasmodium vivax Prof. Dr. Gamal Allam

Morphological Differences Between Human Plasmodium Species in Blood Smears Prof. Dr. Gamal Allam

Key Morphological Differences Between Human Plasmodium Species in Blood Smears P. vivax 1 - enlarged erythrocyte. 2 - Schüffner's dots. 3 - ameboid trophozoite. P. ovale 1 -elongated oval erythrocyte. 2 - Schüffner's dots. 3 - compact trophozoite. 4 - usually fewer merozoites in schizont. P. malariae P. falcipar. 1 - compact trophozoite. 2 - merozoites in rosette. 3 - Band shape schizont. 1 - numerous rings. 2 - smaller rings. 3 - no trophozoites or schizonts. 4 - crescentshaped gametocytes. Prof. Dr. Gamal Allam

P. vivax stages in blood: Ring stage. Schizont Schuffner’s dots. Gametocyte Prof. Dr. Gamal Allam Trophozoite Gametocyte

Plasmodium ovale: Trophozoite Ring Schizont Prof. Dr. Gamal Allam Gametocyte

Prof. Dr. Gamal Allam

Forms of Plasmodium falciparum Seen in the Peripheral Blood Prof. Dr. Gamal Allam

Toxoplasma gondii Tachyzoites & Cyst Toxoplasma gondii cyst in brain tissue stained with hematoxylin and eosin Toxoplasma gondii tachyzoites, stained with Giemsa Prof. Dr. Gamal Allam

Thank You Prof. Dr. Gamal Allam