Hyperinfection with Strongyloides stercoralis.

Area of Science:

• * Infectious Diseases
• * Medical Parasitology
• * Gastroenterology

Background:

• * Strongyloidiasis is a parasitic infection caused by the nematode Strongyloides stercoralis, primarily affecting the gastrointestinal tract.
• * In immunocompromised individuals, particularly those with Human Immunodeficiency Virus (HIV), Strongyloides stercoralis can lead to hyperinfection syndrome, a potentially fatal condition characterized by widespread larval dissemination.

Observation:

• * A case report of a 49-year-old HIV-positive male who developed disseminated Strongyloides hyperinfection.
• * The patient presented with severe gastrointestinal damage, including intestinal perforation, and sepsis secondary to bacterial dissemination.
• * Diagnosis was challenging due to low larval excretion in stool samples, with the condition ultimately being diagnosed postmortem.

Findings:

• * The postmortem examination confirmed disseminated Strongyloides hyperinfection, revealing extensive damage to the stomach and intestines.
• * Sepsis was identified as a complication resulting from the widespread dissemination of bacteria.
• * The case underscores the difficulty in diagnosing strongyloidiasis, often requiring microscopic examination of enriched stool samples and potentially serological testing.

Implications:

• * This case highlights the critical role of HIV immunosuppression in facilitating the dissemination of Strongyloides stercoralis larvae.
• * It emphasizes the need for increased clinical suspicion and proactive diagnostic measures, including stool parasite examination, in immunocompromised patients presenting with gastrointestinal symptoms.
• * The findings suggest that serological tests may be valuable for screening and monitoring treatment efficacy in at-risk populations.