Wuchereria bancrofti

Question 1

Wuchereria bancrofti. Other name

Answer 1

Bancroft’s filaria

Question 2

Wuchereria bancrofti. Habitat:

Answer 2

Lymphatics

Question 3

Wuchereria bancrofti. Vector:

Answer 3

Mosquito (Anopheles, Culex, Aedes)

Question 4

Disease: Elephantiasis. What parasite

Answer 4

Wuchereria bancrofti

Question 5

Wuchereria bancrofti. Disease:

Answer 5

Elephantiasis (lower) with chylocoele/hydrocoele and chyluria, Tropical Pulmonary eosinophilia

Question 6

Wuchereria bancrofti. Microfilaria: size?

Answer 6

270 – 290 um

Question 7

Wuchereria bancroft. Microfilaria: Highest concentration in nighttime, about ___ to ____ (same with B. malayi)

Answer 7

10pm to 2am

Question 8

Wuchereria bancrofti. Microfilaria: Highest concentration in nighttime, about 10pm to 2am (same with ___)

Answer 8

Brugia malayi

Question 9

Its microfilaria is a Minute snake like organisms in red
blood cells, “graceful appearance

Answer 9

Wuchereria bancrofti

Question 10

Wuchereria bancrofti. Microfilaria is a Minute snake like organisms in red
blood cells, “____ appearance

Answer 10

graceful appearance

Question 11

Wuchereria bancrofti. Adult: males sizes

Answer 11

20 – 40 mm in length and 100 um in width

Question 12

Wuchereria bancrofti. Adult:
males: has a ventrally curved tail with how many pairs of caudal sensory organs

Answer 12

15 pairs

Question 13

Wuchereria bancrofti. Adult: Female sizes

Answer 13

80-100 mm in length and 300 um in width

Question 14

In this parasite, the adult - generally, are cylindrical, whitish and somehow transparent; they have a neck area

Answer 14

Wuchereria bancrofti

Question 15

Maturation time of Wuchereria bancrofti

Answer 15

2-3 weeks

Question 16

in Wuchereria bancrofti, the microfilariae appear in the blood ____ year after infection

Answer 16

1 year

Question 17

Wuchereria bancrofti. Presence of thousands to millions of microfilariae in peripheral blood with no
clinical manifestation

Answer 17

Asymptomatic

Question 18

Wuchereria bancrofti. Acute stage: early manifestations ___ and inflammation of lymph glands
(_____).

Answer 18

fever and inflammation of lymph glands
(lymphadenitis).

Question 19

Wuchereria bancrofti. what stage in pathogenesis, . Recurrent attacks are those involving funiculitis, swelling and redness of arms
and legs.

Answer 19

Acute stage

Question 20

Wuchereria bancrofti. Chronic pitting edema progressing into non pitting edema. Positive for fibrous hyperplasia. Lower elephantiasis may occur

Answer 20

Chronic stage/lymphedema

Question 21

Wuchereria bancrofti. PATHOGENESIS. Can stimulate apoptosis of dendritic cells and CD4+ T cells

Answer 21

Immunologic consequences

Question 22

Dreyer’s staging for chronic lymphedema. Swelling increases in day but disappears overnight (especially when lying in bed)

Answer 22

Stage 1

Question 23

Dreyer’s staging for chronic lymphedema. Swelling no longer reversible, occurrence of acute attacks and can have bad odor

Answer 23

Stage 2:

Question 24

Dreyer’s staging for chronic lymphedema. Presence of shallow skin folds, occasional acute attacks and bad odor

Answer 24

Stage 3

Question 25

Dreyer’s staging for chronic lymphedema. Knobs and protrusions are found in skin, occasional acute attacks and bad odor

Answer 25

Stage 4

Question 26

Dreyer’s staging for chronic lymphedema. Deep skin folding, frequent acute attacks and lymphedema can go beyond the knee

Answer 26

Stage 5

Question 27

Dreyer’s staging for chronic lymphedema. Mossy lesions (mossy foot), acute attacks and wounds in skin

Answer 27

Stage 6

Question 28

Dreyer’s staging for chronic lymphedema. hOW MANY STAGES

Answer 28

7 STAGES

Question 29

Wuchereria bancrofti. LABORATORY DIAGNOSIS. The diagnosis of filariasis depends on the clinical features, history of exposure in ____ and on laboratory findings.

Answer 29

endemic areas

Question 30

Wuchereria bancrofti. LABORATORY DIAGNOSIS. Microfilaria can be demonstrated in ___, ______, and ____.

Answer 30

blood, chylous urine exudate of lymph varix, and hydrocele fluid.

Question 31

Wuchereria bancrofti. LABORATORY DIAGNOSIS. specimen of choice

Answer 31

peripheral blood

Question 32

Wuchereria bancrofti. Biopsy:
_____ can be seen in sections of biopsied lymph nodes, but this is not employed in routine diagnosis

Answer 32

Adult filarial worms

Question 33

Wuchereria bancrofti.. Skin Test

Answer 33

Intradermal injection of filarial antigens

Question 34

Wuchereria bancrofti. Imaging technique

Answer 34

Ultrasonography
Radiology

Question 35

This is when Mosquitoes are allowed to feed on the infected patients and are dissected 4-6 weeks later to demonstrate microfilaria, useful in detecting low density microfilaremia

Answer 35

Xenodiagnosis

Question 36

Xenodiagnosis:
Mosquitoes are allowed to feed on the infected patients and are dissected ____ weeks later to demonstrate microfilaria, useful in detecting low density microfilaremia

Answer 36

4-6 weeks