Hematuria Cause: Schistosoma hematobium Infection
Hematuria, indicated by the presence of blood in the urine, is a significant symptom associated with infection by the parasite Schistosoma hematobium. This specific species targets the venous plexus of the urinary tract, particularly the bladder and ureters.
Parasitic Mechanism of Hematuria
The lifecycle of Schistosoma hematobium involves the deposition of parasite eggs within the walls of the bladder and ureters. These eggs trigger an inflammatory response and can physically damage the bladder lining. This damage and inflammation lead to bleeding, which manifests as hematuria.
Differential Diagnosis of Other Options
- Strongyloides stercoralis: Primarily causes gastrointestinal and pulmonary symptoms. Hematuria is not a characteristic or prominent symptom.
- Toxocara spp.: Causes visceral larva migrans, affecting organs like the liver, lungs, or eyes. Urinary tract involvement leading to hematuria is rare.
- Gnathostomiasis: Typically presents with subcutaneous nodules, eosinophilic meningitis, or ocular inflammation. Hematuria is not a typical sign.
Therefore, Schistosoma hematobium is the parasite among the choices that characteristically causes prominent hematuria due to its specific tropism for the urinary tract.
Important Questions from Metazoan Infections
- Which among the following is the first intermediate host for the parasitic fluke Clonorchis sinensis?
Which among the following are hepatobiliary flukes (trematodes)?
1. Clonorchis sinensis
2. Mansonella perstans
3. Fasciola hepatica
4. Opisthorchis felineus
Select the correct answer using the code given below:
- Which among the following parasitic helminths is a nematode and has zoonotic transmission?
Which of the following statements are correct in respect of scabies?
1. Male mite Sarcoptes scabiei are commonly transferred from an infected person to a non-infected person.
2. Norwegian scabies occur in immunodeficient patients.
3. Permethrin cream (5%) is used for treatment.
4. Pruritus intensifies at night and after hot shower.
Select the answer using the code given below :
Consider the following statements with regard to cysticercosis :
1. It may present as personality change.
2. Subcutaneous nodule may excised for histology.
3. Cerebral signs commonly do not occur until the larvae die, 5-20 years later.
4. Praziquantel can be given for 10 days.
Which of the statements given above are correct?
