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:
Hepatobiliary Flukes Identification
Hepatobiliary flukes are parasitic flatworms (trematodes) that specifically inhabit the bile ducts or gallbladder of the liver. Identifying these parasites is crucial in medical parasitology.
Analyzing Parasites
Let's examine each organism listed:
- 1. Clonorchis sinensis: This is a well-known liver fluke that resides in the bile ducts. It is classified as a hepatobiliary fluke.
- 2. Mansonella perstans: This is a filarial nematode, a type of roundworm, not a trematode. It is found in the peritoneal cavity and mesenteric tissues, not the bile ducts.
- 3. Fasciola hepatica: Commonly known as the sheep liver fluke, this trematode infects the liver and bile ducts. It is a significant hepatobiliary fluke.
- 4. Opisthorchis felineus: Also known as the cat liver fluke, this trematode infects the bile ducts and gallbladder. It is a hepatobiliary fluke.
Selecting the Correct Option
Based on the analysis, the organisms identified as hepatobiliary flukes are Clonorchis sinensis (1), Fasciola hepatica (3), and Opisthorchis felineus (4). Mansonella perstans (2) is not a hepatobiliary fluke.
Therefore, the correct combination is 1, 3, and 4.
Important Questions from Metazoan Infections
- Which among the following is the first intermediate host for the parasitic fluke Clonorchis sinensis?
- 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?
Consider the following statements with regard to cutaneous larva migrans :
1. It is one of the commonest linear lesions seen in travellers.
2. It may be associated with a recent visit to a beach.
3. It is non-pruritic.
4. Track moves across the skin at a rate of 2-3 cm/day.
Which of the statements given above are correct?
