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Whipple's disease: a granulomatous masquerader.
1Department of Medicine, Royal Free School of Medicine, Rowland Hill Street, London NW3 2PF, UK.
Clinics in Chest Medicine
|July 3, 2002
Summary
Whipple's disease is a rare bacterial infection caused by Tropheryma whipplei, affecting multiple body systems. Early diagnosis through specific staining, electron microscopy, and PCR is crucial for effective treatment and preventing severe complications.
Area of Science:
- Infectious Diseases
- Microbiology
- Gastroenterology
Background:
- Whipple's disease is a rare, multisystemic bacterial infection.
- It primarily affects middle-aged white men, presenting with gastrointestinal and systemic symptoms.
- Tropheryma whipplei is the causative bacterium, impacting various organs including the CNS, heart, and lungs.
Purpose of the Study:
- To summarize the key features of Whipple's disease.
- To highlight diagnostic methods for Tropheryma whipplei infection.
- To emphasize the importance of early diagnosis and treatment.
Main Methods:
- Diagnosis relies on periodic acid-Schiff staining of infected macrophages.
- Electron microscopy visualizes Tropheryma whipplei bacilli within vesicles.
- Molecular techniques like PCR amplify bacterial DNA from tissues and fluids.
Main Results:
- Foamy monocyte-macrophages in biopsy tissue are indicative of Whipple's disease.
- Electron microscopy confirms the presence of bacilli.
- PCR offers sensitive detection of the causative agent.
Conclusions:
- Whipple's disease diagnosis is confirmed by a combination of histopathology, electron microscopy, and molecular methods.
- Differential diagnosis includes other chronic infections and granulomatous disorders.
- Prompt diagnosis and treatment are vital to prevent chronic disability and mortality.