Hepatic granulomas in Whipple's disease

Area of Science:

• Gastroenterology and Hepatology
• Infectious Diseases
• Neurology

Background:

• Whipple's disease is a rare systemic bacterial infection typically presenting with gastrointestinal and joint symptoms.
• Hepatic granulomas are inflammatory nodules in the liver, often associated with various chronic conditions.
• The diagnosis of Whipple's disease is often delayed, especially when classic symptoms are absent.

Observation:

• A 32-year-old male presented with painless hepatomegaly and mild fever, showing hepatic epithelioid cell granulomas negative for PAS stain.
• The patient initially lacked intestinal symptoms, leading to a delayed diagnosis of Whipple's disease.
• Neurologic manifestations appeared three months later, prompting further investigation.

Findings:

• Histologic examination of jejunal and lymph node biopsies confirmed Whipple's disease.
• The patient's hepatic granulomas were a key, albeit unusual, presenting sign.
• Antibiotic therapy led to rapid improvement in both neurologic and overall symptoms.

Implications:

• Hepatic granulomas, particularly PAS-negative epithelioid ones, should prompt consideration of Whipple's disease, even without gastrointestinal complaints.
• This case highlights the importance of considering rare etiologies in unexplained hepatic granulomas.
• Early diagnosis of Whipple's disease, facilitated by recognizing atypical presentations, is crucial for effective management and preventing severe complications.