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Pathology of opportunistic infections in children with acquired immune deficiency syndrome
Abstract:
Opportunistic infections (OI) were diagnosed by histology and culture of biopsy and autopsy material in 15 children with the acquired immune deficiency syndrome (AIDS). The opportunistic pathogens included Pneumocystic carinii, Toxoplasma gondii, Candida species, Aspergillus species, Mycobacterium avium-intracellulare, cytomegalovirus, and herpes simplex virus. Seven of 15 patients also had multiple systemic infections with common pathogenic bacteria. Accurate diagnosis of OI in AIDS is of importance in the decision regarding the choice of appropriate antimicrobial therapy. Careful histologic assessment of the biopsy specimens; awareness of unusual features such as paucity of organisms and inflammatory reaction, "histoid" variety of reaction, lack of granuloma formation, and resemblance to Whipple's disease in certain OI; and demonstration of causative organisms by appropriate special stains and/or culture are essential in the evaluation of these patients.
Insights
Diagnosing opportunistic infections (OI) in children with acquired immune deficiency syndrome (AIDS) is crucial for selecting effective antimicrobial therapies. Histology and culture of biopsy samples aid in identifying pathogens like Pneumocystis carinii and Candida species.
Area of Science:
- Pediatrics
- Infectious Diseases
- Immunology
Background:
- Acquired immune deficiency syndrome (AIDS) in children predisposes them to opportunistic infections (OIs).
- Accurate diagnosis of OIs is critical for guiding appropriate antimicrobial therapy in pediatric AIDS patients.
Purpose of the Study:
- To identify common opportunistic pathogens in children with AIDS.
- To highlight diagnostic challenges and essential evaluation methods for OIs in pediatric AIDS.
Main Methods:
- Histological examination and culture of biopsy and autopsy materials from 15 children diagnosed with AIDS.
- Identification of opportunistic pathogens and common pathogenic bacteria.
Main Results:
- Fifteen children with AIDS were diagnosed with OIs, including Pneumocystis carinii, Toxoplasma gondii, Candida, Aspergillus, Mycobacterium avium-intracellulare, cytomegalovirus, and herpes simplex virus.
- Seven patients also presented with systemic bacterial infections.
- Specific histological features, such as paucity of organisms and atypical inflammatory responses, were noted.
Conclusions:
- Accurate diagnosis of OIs in pediatric AIDS is vital for effective treatment selection.
- Careful histologic assessment, awareness of unusual presentation patterns, and microbiological confirmation are essential for evaluating OIs in these patients.