Disseminated cryptosporidiosis in Turkey: case report

D Dirim1, H Dagci, N Turgay

  • 1Ege University, Medical Faculty, Department of Parasitology, Bornova, Izmir, 35100, Turkey.

Insights

Cryptosporidium infection can cause severe diarrhea in infants, especially those with immune deficiencies like Hyper IgM Type 3. Early diagnosis is crucial for infants with gastrointestinal and respiratory symptoms.

Area of Science:

  • Immunology
  • Infectious Diseases
  • Pediatrics

Background:

  • Cryptosporidium is a protozoan parasite causing diarrhea, particularly in immunocompromised individuals.
  • CD40 deficiency (Hyper IgM Type 3) is a primary immunodeficiency affecting B-cell function and antibody production.
  • Infants with immunodeficiencies are at higher risk for opportunistic infections.

Observation:

  • A 12-month-old infant with CD40 deficiency presented with chronic diarrhea, fever, respiratory distress, and failure to thrive.
  • Cryptosporidium oocysts were detected in stool samples and transtracheal aspirate during a year-long investigation.
  • The patient also suffered from necrotic pneumonia, a severe complication.

Findings:

  • The case highlights the opportunistic nature of Cryptosporidium in severely immunocompromised infants.
  • Persistent gastrointestinal and respiratory symptoms in immunodeficient infants can be indicative of cryptosporidiosis.
  • Kinyoun Acid-fast staining effectively identified Cryptosporidium oocysts in clinical specimens.

Implications:

  • Cryptosporidiosis should be considered in the differential diagnosis of infants with combined gastrointestinal and respiratory issues and known or suspected immunodeficiency.
  • Early identification and treatment of Cryptosporidium can improve outcomes in vulnerable pediatric populations.
  • This case underscores the importance of thorough diagnostic workups for complex infections in primary immunodeficiency disorders.

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