General Parasitology and Helminthology: Taenia solium

Taenia solium

TAENIA SOLIUM

Host	Man
Location	Small intestine
I/H	Pig (Man also acts as I/H)
Metacestode/Bladder worm/Larval Tapeworms	Cysticercus cellulosae. The condition caused by this larval stage is Porcine cysticercosis or Measely pork.
Morphology	Adults are 3 to 5 m in length. Scolex has four suckers. Rostellum armed with penknife shaped hooks (2 rows). In the gravid segment, uterus has 7 to 16 lateral branches. Gravid segments do not leave the host spontaneously. Segments are voided in the faeces in a chain. All the other characters are similar to T.hydatigena. In pigs, cysticerci occur in tongue, neck, oesophagus intercostal and cardiac muscle. The larval stage is known as Cysticercus cellulosae. It reaches maturity in about 9 to 10 weeks time. Cysticercus cellulosae infected pork is called as “measley pork”. Sometimes man also acts as I/H in which man acquire infection either by ingestion of eggs along with contaminated food or by autoinfection. Autoinfection occurs only in persons already infected with adult worms. Due to reverse peristalsis, the eggs are released from the gravid segment while they are passing through and hatch in the intestine itself. Then the oncospheres penetrate the intestinal wall and reach various parts of the body where they develop into cysticerci. Cysticercus in man mainly occurs in brain, s/c tissue and ocular tissue (eye).

Click here to view life cycle of Taenia solium 1

Click here to view the lifecycle of Taenia solium 2

Last modified: Tuesday, 19 June 2012, 7:29 AM

Home
- Site pages
  - Tags
  - Calendar
  - Site news
- Current course
  - General Parasitology and Helminthology
    - Participants
    - General
    - Topic 1
    - Topic 2
    - Topic 3
    - Topic 4
    - Topic 5
    - Topic 6
    - Topic 7
    - Topic 8
    - Topic 9
    - Topic 10
    - Topic 11
    - Topic 12
    - Topic 13
    - Topic 14
    - Topic 15
    - Topic 16
    - Topic 17
    - Topic 18
    - Topic 19
    - Topic 20
    - Topic 21
    - Topic 22
    - Topic 23
    - Topic 24
    - Topic 25
    - Topic 26
      - Learning objectives
      - Introduction
      - T. saginata
      - Life cycle
      - Pathogenesis and diagnosis
      - Treatment and control
      - Taenia solium
      - Pathogenesis and diagnosis
      - Treatment and control
      - Mesocestoides lineatus
      - Life cycle
      - Pathogenesis and treatment
      - Diphyllobothrium latum
      - Life cycle
      - Pathogenesis and diagnosis
      - Treatment and control
      - PODCAST
      - Quiz
    - Topic 27
    - Topic 28
    - Topic 29
    - Topic 30
    - Topic 31
    - Topic 32
    - Topic 33
    - Topic 34
    - Topic 35
    - Topic 36
    - Topic 37
    - Topic 38
    - Topic 39
    - Topic 40
    - Topic 41
    - Topic 42
    - Topic 43
    - Topic 44
    - Topic 45
    - Topic 46
    - Topic 47
    - Topic 48
    - Topic 49
    - Topic 50
    - Topic 51
    - Topic 52
    - Topic 53
    - Topic 54
    - Topic 55
    - Topic 56
    - Topic 57
    - Topic 58
    - Topic 59
    - Topic 60
    - Topic 61
    - Topic 62
    - Topic 63
    - Topic 64
    - Topic 65
    - Topic 66
    - Topic 67
    - Topic 68
    - Topic 69
- Courses

VPA 211: General Veterinary Parasitology and Helminthology (3+1)

Taenia solium

Navigation