Monday, 13 October 2025

Cryptic Co-Infection by Strongyloides stercoralis and Helicobacter pylori Mimicking Gastrointestinal Malignancy: A Case Report | Chapter 7 | An Overview of Disease and Health Research Vol. 6

 

Background: Strongyloidiasis is an infection caused by Strongyloides stercoralis, a globally prevalent nematode. It is estimated to infect about 600 million people globally mainly from tropical and subtropical regions of Africa, Asia, South America, and the Southeastern United States. India, being a tropical country, is prone to many such infections, but there is limited availability of data showing the prevalence of Strongyloides stercoralis infection.

 

Aim: This case report aims to emphasise the importance of keeping parasitic infections as a differential diagnosis in cases clinically suspicious for gastrointestinal malignancies.

 

Case Presentation: This chapter reports a case of a 60-year-old male with a co-infection by Strongyloides stercoralis and Helicobacter pylori. The patient presented with the non-specific symptoms of epigastric discomfort, fatigue and unintentional weight loss over several months with no significant past medical history. This led to a suspicion of malignancy for which routine investigations, along with upper gastrointestinal endoscopy with biopsy, were performed. Subsequently, rhabditiform larvae of Strongyloides stercoralis and Helicobacter pylori were identified on gastric and duodenal biopsies. The patient was treated with Amoxicillin 1 g twice daily, Clarithromycin 500 mg twice daily, Proton pump inhibitor (Omeprazole) 20 mg twice daily for Helicobacter pylori infection, and Ivermectin at a dose of 200 µg/kg/day for Strongyloides stercoralis infection. Follow-up evaluations after 4 weeks showed normalisation of the patient’s haemoglobin levels, stool examination and a significant improvement in overall health and nutritional status.

 

Discussion: Strongyloidiasis usually targets immune-compromised hosts owing to hyperinfestation, but remains asymptomatic in healthy individuals. Moreover, there is limited availability of diagnostic modalities for such parasitic infections which hinders the way for early diagnosis, therefore leading to poor prognosis. In selected cases with non-specific symptoms like that in this case, early upper gastrointestinal endoscopy with histopathology can help in early diagnosis and prompt treatment.

 

Conclusion: Due to the non-specific nature of the symptoms, it is difficult to reach a diagnosis, though it is necessary to have a high degree of suspicion and make an early diagnosis to have better outcomes.

 

 

Author(s) Details

Shruti Varshney
Jawaharlal Nehru Medical College, Aligarh Muslim University, India.

 

Bushra Siddiqui
Department of Pathology, Jawaharlal Nehru Medical College, Aligarh Muslim University, India.

 

Shahbaz Habib Faridi
Department of Surgery, Jawaharlal Nehru Medical College, Aligarh Muslim University, India.

 

 

Please see the book here :- https://doi.org/10.9734/bpi/aodhr/v6/6325

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