Hookworm
Cutaneous larva migrans is caused by hookworm larvae (a nematode), not an ectoparasite.
What our notes say
- Cutaneous larva migrans is caused by hookworm larvae (a nematode), not an ectoparasite. (Paediatrics Senior Clerkship end of 2nd semester exam: 4 October 2021, 50 MCQs)
- Hookworm infection is associated with intestinal obstruction in children with heavy infection (Paediatrics Year 6 MBChB end of semester CAT: clinical case MCQs, 29 of 30 quest)
- Ascaris is swallowed (and heavy infection can obstruct the bowel), hookworm penetrates the skin and causes anaemia, ivermectin is now preferred for strongyloidiasis, and rectal prolapse is from Trichuris. (Paediatrics Year 6 MBChB end of semester CAT: clinical case MCQs, 29 of 30 quest)
- *Ancylostoma duodenale* is a hookworm with a curved anterior end resembling a hook. (Principles of Medical Microbiology and Parasitology LAQs & SAQs)
- Hookworms are blood-feeding intestinal nematodes that cause iron deficiency anemia in humans. (Hookworms (Ancylostoma duodenale & Necator americanus))
- Causes: blood loss (menstruation, hookworm, peptic ulcer, haemorrhoids), increased need (pregnancy, growth), poor intake (diet), poor absorption (coeliac disease, atrophic gastritis). (Internal Medicine (MBIM 4100) main exam, Paper One: 3 July 2019)
Study material on Hookworm
- Hookworms (Ancylostoma duodenale & Necator americanus)
- Paediatrics Year 6 MBChB end of semester CAT: clinical case MCQs, 29 of 30 questions
- GASTROINTESTINAL PATHOLOGY (Part 2)
- Approach to anaemia
- Pharmco Notes
- Department Of Medical Microbiology & Parasit.. MCQs
Practice questions on Hookworm
Each of the following statements concerning hookworm infection is correct EXCEPT ---
- Hookworm infection can cause pneumonia
- Hookworm infection can be diagnosed by finding the trophozoite in the stool
- Hookworm infection is caused by Necator americanus
- Hookworm infection is acquired by humans when filariform larvae penetrate the skin
- None of the above
Answer: B.