1. Medical parasitology (Final Revision )
Manchester, S6

2. Points you have to know with each parasite
Habitat
D.H, R.H, I.H
Drug of choice
C/P
Diagnostic , infective stages

3. Echinococcus granulosus Enterobius vermicularis
Helminths
Trematodes
Fasciola species
P. westermani
Cestodes
Taenia species
Echinococcus granulosus
Nematodes
Ascaris lumbricoides
Enterobius vermicularis
Wuchereria bancrofti
Brugia malayi

4. Fasciola species

5. Fasciola cercaria

6. Fasciola egg

7. Name ?

8. Parasites affecting lung

9. Paragonimus egg

10. Tapeworms

11. Taenia saginata gravid segment

12. Taenia solium gravid segment

13. Taenia saginata & Taenia solium scolex

14. Taenia egg

15. E) Diagnostic stage (gravid segments or rarely eggs in the stool)
1) The next figure represents part of a parasite
Answer the following questions:
A) Mention name of the parasite (Taenia solium)
B) Diseases caused by this parasite (intestinal taeniasis and cysticercosis )
C) Methods of infection (consumption of imperfectly cooked pig's meat containing the cysticercus cellulosa, ingestion of eggs of T. Solium, external or internal autoinfection)
D) Infective stage (cysticercus cellulosa in case of intestinal taeniasis and egg in case of cysticercosis)
E) Diagnostic stage (gravid segments or rarely eggs in the stool)
F) Habitat of this parasite (small intestine)

16. Ecchinococcus granulosus

17. Unilocular hydatid cyst

18. Ascaris adult male and female

19. Fertile egg of Ascaris

20. Ascaris eggs
decorticated
Corticated & fertilized
unfertilized

21. Enterobius vermicularis male

22. Enterobius vermicularis female

23. Enterobius vermicularis egg

24. Wuchereia bancrofti microfilaria

26. Entamoeba histolytica cyst

27. Entamoeba histolytica trophozoites

28. Giardia intestinalis trophozoite

29. Giardia intestinalis cyst

30. Free-living amoebae
Naegleria fowleri

31. Acanthamoeba castellani

32. Phlebotomous papatasi
Haemosomatic flagellates
Phlebotomous papatasi

34. Leishmania Promastigote form

35. Leishmania promastigote

36. Polymorphic trypanosomes

37. Monomorphic trypanosomes Trypanosoma cruzi in blood

38. T. Cruzi forms in blood and tissue

39. Chiclero ulcer
Romana’s sign

45. Plasmodium falciparum gametocyte

46. Plasmodium malariae Band form trophozoite

48. Plasmodium ring stage

49. P. vivax ring

50. Plasmodium falciparum Plasmodium vivax `n ovale
Complications:
Cerebral malaria
Hypoglycaemia
Hyperpyrexia
Convulsion
Shock
Hemoglobinuria
Severe anaemia
Acute renal failure
Coagulopathy
Spontaneous bleeding
Acute pulmonary oedema
Aspiration pneumonia
Hyperparasitaemia
Metabolic acidosis
Glomerulonephritis
Nephrotic syndrome
Plasmodium malariae
Plasmodium falciparum
Relapses
Plasmodium vivax `n ovale
Manar Sobh Azab

51. Malaria
Mosquito-born malaria
Blood-transfusion malaria

52. P. vivax P. ovale P. malariae P. falciparum
Stippling
Schuffner dots (fine pink dots)
Schufffner dots (fine pink dots)
Ziemann dots (fine pink dots)
Maurer dots (irregular red clefts)
Ring stage
Fills 1/3 of R.B.Cs.
Fills 1/3 of R.B.Cs. ,stippling appears early
Fills 1/6 of R.B.Cs.
- Frequently two chromatin dots
-Accolé forms
Trophozoite
- Amoeboid
- Highly vacuolated
- More compact
- Less vacuolated
- Less vacuolated, sometimes band shaped
- Not seen in peripheral blood
Schizont
- Fills the R.B.Cs.
- Contains 16 merozoites
- Fills 3/4 of R.B.Cs.
- Contains 8 merozoites
- Contains 8 merozoites (rosette- shape)
- Fills 3/4 of R.B.Cs.
- Contains 24 merozites
- Not seen in peripherial blood
Gametocyte
Fills the R.B.Cs.
Fills 3/4 of R.B.Cs.
Crescent or banana – shaped

53. Control of arthropods
Larva
Adult

54. Parasites transmitted by arthropods
W. bancroft, malayi (mosquitoes).
Giardia, Entamoeba, Enterobius, Ascaris (house fly)
Leishmania (sand fly).
Trypanosoma gambiense (Glossina).
Trypanosoma cruzi (Triatoma).
. Plasmodium (mosquito Anopheles).

55. Thank You