Pics or didn't happen

Question 1

Answer 1

S. mansoni egg

Question 2

Answer 2

Plasmodium falciparum

Rings may possess one or two chromatin dots. They may be found on the periphery of the RBC (accolé, appliqué) and multiply-infected RBCs are not uncommon. Ring forms may become compact or pleomorphic depending on the quality of the blood or if there is a delay in making smears. There is usually no enlargement of infected RBCs.

Question 3

Answer 3

Plasmodium falciparum

Rings may possess one or two chromatin dots. They may be found on the periphery of the RBC (accolé, appliqué) and multiply-infected RBCs are not uncommon. Ring forms may become compact or pleomorphic depending on the quality of the blood or if there is a delay in making smears. There is usually no enlargement of infected RBCs.

Question 4

Answer 4

Gametocyte of plasmodium falciparum

Question 5

Answer 5

Schizont p.falciparum

(rare to see in blood except in severe cases)

Question 6

Answer 6

P. ovale

Developing trophozoites of P. ovale are compact with little vacuolation. Infected RBCs are often slightly enlarged and may exhibit fimbriation and Schüffner’s dots. Pigment is less-coarse and diffuse

Question 7

Answer 7

P. vivax

Figure B: Trophozoite of P. vivax in a thin blood smear. Note the amoeboid appearance, Schüffner’s dots and enlarged infected RBCs.

Question 7

Answer 7

P. ovale

Figure C: Trophozoite of P. ovale in a thin blood smear. Note the fimbriation and Schüffner’s dots.

Question 8

Answer 8

Figure A: Trophozoite of P. vivax in a thick blood smear.

Developing trophozoites of P. vivax become increasingly amoeboid, with tenuous pseudopodial processes and large vacuoles. Schüffner’s dots are visible with proper staining. Pigment tends to be fine and brown. Infected RBCs are usually noticeably larger than uninfected RBCs.

Question 9

Answer 9

Amastagotes of leishmania

Amastigotes of Leishmania are spherical to ovoid and measure 1-5 µm long by 1-2 µm wide. They possess a large nucleus, a prominent kinetoplast, and a short axoneme, the last of which is rarely visible by light microscopy. The organisms reside in macrophages of the host and can be found throughout the body.

Amastigotes of Leishmania spp. are morphologically indistinguishable from those of Trypanosoma cruzi

Question 10

Answer 10

Just some normal macrophages for reference

Question 11

Answer 11

Normal blood smear for reference

Question 12

Answer 12

Figure A: Toxoplasma gondii tachyzoites, stained with Giemsa, from a smear of peritoneal fluid obtained from a laboratory-inoculated mouse.

Question 13

Answer 13

Figure A: Toxoplasma gondii cyst in brain tissue stained with hematoxylin and eosin

Question 14

Answer 14

Entamoeba Histolytica

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

Question 15

Answer 15

Entamoeba Histolytica

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

Question 16

Answer 16

Promastigotes Leish

Infective stage

Question 17

Answer 17

Ascaris egg

unfertilised

Question 18

Answer 18

Ascaris lumbricoides egg

Fertilised

Question 19

Answer 19

Taenia Egg

See a tyre think Taenia

(cannot differentiate between solium and saginata)

Question 20

Answer 20

Hookworm Egg

Thin shell - hatches early, does not need to be durable. Hatches to rhabiditiform –> filariform larvae (Infectious stage)

Segementum ovum

Eg
Necator Americanus
Ancylostoma Duodenialis

Question 21

Answer 21

Trichuris Trhicura

tea tray
big

Question 22

Answer 22

Fasciola Hepatica

Treatment of triclabendazole 7/7 BD

Question 23

Answer 23

Diphyllobothrium Latium

Fish tape worm

Question 24

Which diseases is this a vector for?

Answer 24

Aedes Dengue Yellow fever Zika Chickungunya

Question 25

Which diseases is this a vector for?

Answer 25

Culex JEV WNV

Question 26

Which diseases is this a vector for?

Answer 26

Anopheles Malaria

Question 27

Answer 27

Schistosoma Japonicum

Question 28

Answer 28

Schistosoma Haematobium

Question 29

Answer 29

Metacyclic trypamastigote (infectious stage) T.Cruzi T cruzi and brucei - pretty similar looking. Larger kinetoplast in cruzi

Question 30

Answer 30

Cryptococcus neoformans India ink stain

Question 31

Answer 31

P. malariae trophozoite band form

Question 32

Answer 32

P. malariae schizont Rosette

Question 33

Answer 33

Wuchereria bancfroti microfilaria Sheath pink Empty tail Nuceli relatively distinct

Question 34

Gabon/Cameroon

Answer 34

Loa Loa MF Ghost sheath Nuclei towards tail flattened

Question 35

Indonesia

Answer 35

Brugia Timori Empty head (Tim has an empty head) More nuclei in tail

Question 36

Answer 36

Onchocerciasis Slab head (swollen empty head) Empty tail Onchocerciasis skin snip

Question 37

Name each MF

Answer 37

Question 38

Name the vector

Answer 38

Sandfly Lutzomyia Leishmaniasis

Question 39

Name the vector

Answer 39

Black fly Simulium spp Onchocerciasis

Question 40

Name the vector

Answer 40

Red fly Chrysops sp loa loa

Question 41

Name the vector

Answer 41

Scabies mite Sarcoptes scabei

Question 42

Name the vector

Answer 42

Triatome bug (kissing bug)

Question 43

Name the vector

Answer 43

The humble rat flea Xenopsylla cheopis

Question 44

Genus Disease caused

Answer 44

Ambylomma AFTS Rickettsia Africa

Question 45

Genus Disease caused

Answer 45

Hyalomma hard tic CCHF

Question 46

Name Disease caused

Answer 46

Schistosome Japnonicum Schistosomiasis Animal reservoir - cats/dogs/pigs in philipines

Question 47

Answer 47

Taenia Solium

Question 48

Answer 48

Taenia Saginta

Question 49

Answer 49

Diphyloobothrium latum

Question 50

Answer 50

Hymenolopis Nana

Question 51

Answer 51

Hymeolopis diminuta

Question 52

Answer 52

Diphylidium cani

Question 53

Answer 53

Trichuris Trichura

Question 54

Answer 54

Hymenolepis nana egg

Question 55

Answer 55

Onchocerca Volvulus

Question 56

Answer 56

Paragonimus spp

Question 57

4 complications

Answer 57

Entermoeba histolytica 1. Amoebic abcess - most commonly in the liver 2. Ameoboma - chronic inflammatory mass, single or multiple, most commonly developing in the ileocaecal region, presenting as and acute/subactue obstruction or causing an intussusception. 3. Haemorrhage - resulting in anaemia or shock 4. Post dysenteric ulcerative colitis - mimicking classical ulcerative colitis. usually resolves slowly without specific treatment

Question 58

Risk in pregnancy

Answer 58

Schizont of p.falciparum maternal anaemia, increased risk of severe malaria, retardation of foetal growth, stillbirth

Question 59

Answer 59

Hookworm rhabiditiform larvae(L1) Looks very similar to strongyloides

Question 60

Answer 60

Tsetse fly (glossina species) Vector for African trypanosomiasis

Question 61

Answer 61

Toxocaris canii egg

Question 62

Answer 62

Clonorchis Siniensis The eggs are oval shaped with a convex operculum that rests on visible “shoulders” at the smaller end of the egg Praziquantel

Question 63

Answer 63

Pullex irritans

Question 64

Answer 64

Xenopsylla Cheops

Question 65

Answer 65

Ctenocephalides canis or C. felis (this one is felis)

Question 66

Answer 66

Giardia duodenalis trophozoites

Question 67

Answer 67

Giardia duodenalis cyst

Question 68

Answer 68

Proctoscolex Echinoccous Granulosus Hydatid disease PAIR procedure

Question 69

Answer 69

Rhabiditiform Larvae Strongyloides Stercoralis No long buccal tube like Hookworm

Question 70

Answer 70

Hookworm L1 larvae (rhabiditiform larvae) 250-300um long eg Ancylostoma duodenalis or Nectar Americanus Long buccal tube parallel lines - different to strongy

Question 71

Answer 71

Hookworm L3 Larvae (filariform larvae) 500-700um long eg Ancylostoma duodenalis or Nectar Americanus Strongy has notched tail

Question 72

Answer 72

Strongyloides Stercoralis 500-700um long L3 larvae Notched tail

Question 73

Answer 73

Thick film Plasmodium falciparum trophozoites

Question 74

Answer 74

Plasmodium Falciparum Schizont RBC is normal size Multiple merozoites 2/3 full RBC

Question 75

Answer 75

Plasmodium ovale schizont RBC is enlarged Merozoites 4-16, average is 8 Cell is 2/3 full

Question 76

Answer 76

Plasmodium vivax schizont RBC is enlarged Lots of merozoites - 12-24 Cell is full

Question 77

Answer 77

P.Ovale gamete - macrogamete Generally less enlargement than P.Vivax

Question 78

Answer 78

P.ovale gamete - microgamete

Question 79

Answer 79

P.vivax gamete - macrogamete

Question 80

Answer 80

P.vivax gametocyte

Question 81

Answer 81

P.malariae gametocyte Gametocytes of P. malariae are compact and tend to fill the host RBC. There is no enlargement of the infected RBC and sometimes there is a reduction in size. The cytoplasm stains blue and the chromatin pink to red. Abundant dark pigment may be scattered throughout the cytoplasm.

Question 82

Answer 82

Trichenella Spiralis Encysted larva Nurse cell

Question 83

Answer 83

Paragonimus westermani egg

Question 84

Answer 84

Clonorchis Siuensis

Question 85

Answer 85

Trypomastigote - Trypanosome Brucei (Gambiense or rhodiense) Small kinetoplast = brucei Big/massive/mega = South America

Question 86

Answer 86

Cryptosporidium cyst

Question 87

Answer 87

Sequestration of RBC infected with plasmodium falciparum Pathophysiology for cerebral malaria

Question 88

Answer 88

Cyclops - freshwater Dracularis Mediensis (guinea worm)

Question 89

Infective stage of - Fasciola, Clonorchis, Fasciolopsis buski, paragonimus

Answer 89

metacercariae Essentially in all other trematodes which are not schistososma