Schistosomiasis

Question 1

Types of schistosomiasis and geography

Answer 1

Schistosoma Hameatobium: found in Africa and Middle East

Schistosoma Mansoni: found in africa and South america

Schistosoma Japonicum: found in China and Philippines

S Mekongi: similar to s japonicum, found in Laos

Schistosoma Haematobium/S Bovis: Corsica

Question 2

Diagnostic stage and infective stage of Schisto

Answer 2

Dx- ova in stools (serology in expats)
Ix- cercariae

Question 3

Actually Schisto presentation?

Answer 3

Known as Katyama fever:
Fever, fatigue, hepatosplenpmegaly and EOSINIOPHILIA

Question 4

S. Haematobium presentation:

Answer 4

Actue: haematuria, UTIs, dysuria
Chronic: SCC bladder, hydroureter and chronic salpingitis

Question 5

S Mansoni presentation:

Answer 5

Acute: abdo pain, colonic polyps
Chronic: portal fibrosis and portal hypertension, hepatosplenomegaly and variceal bleeding

Question 6

S Japonicum presentation:

Answer 6

Acute: colonic polyps and abdo pain
Chronic: can be neuroschistosomiasis, typically eggs in brain, also get portal fibrosis and hypertension

Question 7

How do expats normally present?

Answer 7

Usually asymptomatic with positive serology. tx praziquantel

Question 8

Tx of Schisto:

Answer 8

Praziquantel, wait 6-8 weeks following exposure as only kills adults

Prednisone for katyama fever