Trichuris trichiura Flashcards
Common Name
Whipworm
Infective Stage
Embryonated Eggs
Habitat
- Large Intestine, attached in a pin cushion/pin fashion arrangement.
Notable Parts
- Antenuated/tapered anterior
- Thick/robust posterior part
Life span
2 years
Egg Production
7,000 - 10,000 eggs per day
Male worms
Coiled; have a single spicule (sheathed)
that appears lanceolated
Esophagus
Has a string of beads appearance
Shape
Barrel-shaped/ lemon-shaped/ football-shaped/ japanese lantern
Types of Egg
Fertilized or Unfertilized
Embryonated
Egg
- Embryonated in soil (because it is an STH)
- It has Has L1 larva inside
Characteristics
The egg is _______, _________
thick shelled, non-striated
Characteristics
Has ________ color
bile-stained
Characteristics
It has hyaline/colorless structures on
both ends called
Bipolar mucus plugs
Characteristics
is where larva
will be released or emerged once the egg is embryonated
Bipolar mucus plugs
Trichuris trichiura: Life Cycle
The egg will hatch in the _______ and the larva would find its way and attach to the ____________
- small intestine
- large intestine
Trichuris trichiura: Life Cycle
Eggs will passed onto the stool and
eventually find its way to the soil for the eggs to ______
embryonate
Trichuris trichiura: Life Cycle
The eggs will undergo embryonation in the solid for approximately _______ or in some references, around ______
- 10-14 days
- 2-3 weeks
Trichuris trichiura: Pathology
Adults are seen attached to the lining of the colon/large intestine in a __________
pin fashion manner
Trichuris trichiura: Pathology
The parasite will be able to secrete ___, a pore forming protein
TT47
Trichuris trichiura: Pathology
Patients may experience ________ like syndrome
Chronic dysentery
Trichuris trichiura: Pathology
Usually asymptomatic, but infections can cause:
○ Diarrhea
○ Blood in stool
○ IDA
○ Rectal prolapse
○ Hypoalbuminemia
○ Weight loss
○ Appendicitis
Trichuris trichiura: Pathology
(Rectum is exposed due to high severity)
Rectal prolapse
Trichuris trichiura: Pathology
(because of some blood loss that would happen, albumin can also be lessen)
Hypoalbuminemia
Trichuris trichiura: Treatment
Drug of choice
Mebendazole
Others : Albendazole, albendazole with
ivermectin
Trichuris trichiura: Diagnosis
- DFS
- Kato-katz
- Concentration techniques
- FLOTAC technique
Trichuris trichiura: Treatment
Trichuris is more difficult to be treated as compared to Ascaris because __________
it is attached
to the colon
Trichuris trichiura: Epidemiology
Prefer to be embryonated in ______
clayish soil
Trichuris trichiura: Epidemiology
More common in __________
tropical areas
Trichuris trichiura: Epidemiology
Common among _________
children
