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Nematodes(Roundworms)

Eggs Eaten

1. Enterbious VErmicularis(Pin worm)

alt text Pinworm Egg

  • Eggs eaten
  • Itchy anus
  • Scotch tape from anus --> Eggs under microscope

2. Trichuris Trichiura(Whip worm)

alt text Whip worm - Anal prolapse - Appendicitis - Barrel Shaped eggs on stool - bile stained - cocout cake like rectum


3. Ascaris Lumbricoides

Fertilized egg Unfertilized egg
Ascaris Lumbricoides

alt text - largest worm ……….. - Egg eaten —> larvae travel to lungs then swaled to GI - Eggs in stool


4. Toxocara canis/Catis

  • not a host of worm
  • eggs from dogs /cats
  • worm wander til death

Skin Penetration

1. Nectar Americans

  • skin penetrates larvae travel to lungs then swaled back to GI alt text

2. Ancyclostoma Duodeno

  • old world hook woRM alt text alt text

3. Strongyloides Stercoralis(Thread worm)

  • to lungs then to GI
  • Malabsorption
  • bloody stools

3. Ancylostoma braziliense /Canium

  • Not he host
  • Migration under dermis visible

Insect bite

1. Wucheria Bancrofti/Brugia

Elephatiasis - Mosquito bite … - Elephatiasis (Elephant foot ) due to obstruction of lymph node - Diagnosis --> Microfilaria

2. Loa loa

  • Flies bite. ..
  • Worm pass on eyes
  • No blindness

3. Onchocerciasis Volvulus

  • Black fly bite . . .
  • Aka River Blindness
  • Loss of Vision

SOamtic roaming

1. Dracunulus Medinensis

alt text - Drinking Cintaminated water - Worm on a skin nodule - worm sly pulled out with stick to prevent anaphylaxis from broken worm

2. Trichinella Spiralis

alt text

  • eating encysted larvae
  • mate in stomach
  • new larvae wander throught body