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Rod-shaped organism in the liver of a patient with Whipple's disease
Digestive Diseases and Sciences
|July 1, 1979
Abstract:
Histological review of a liver biopsy from a patient with known Whipple's disease revealed a prominence of Kupffer cells containing PAS-positive granules. Electron microscopy revealed rod-shaped organisms in the Kupffer cells but the presence of these structures were not associated with overt liver injury. This is thought to be the first reported demonstration of these bacillary bodies in this location.
Insights
Whipple's disease, a rare bacterial infection, was identified in liver Kupffer cells. These cells contained PAS-positive granules and rod-shaped organisms, but without causing significant liver damage.
Area of Science:
- Gastroenterology
- Infectious Diseases
- Hepatology
Background:
- Whipple's disease is a rare systemic bacterial infection caused by Tropheryma whipplei.
- The gastrointestinal tract is the primary site of infection, but dissemination to other organs can occur.
Observation:
- Histological examination of a liver biopsy from a patient with known Whipple's disease.
- Kupffer cells (liver-resident macrophages) showed an accumulation of periodic acid-Schiff (PAS)-positive granules.
- Electron microscopy was employed to further investigate the nature of these granules.
Findings:
- Rod-shaped bacterial organisms, consistent with Tropheryma whipplei, were visualized within the Kupffer cells.
- Despite the presence of these organisms, there was no evidence of significant hepatocellular injury or inflammation.
- This represents the first documented instance of Tropheryma whipplei within hepatic Kupffer cells.
Implications:
- Suggests Kupffer cells can harbor Tropheryma whipplei without apparent consequence.
- May indicate a role for Kupffer cells in the host-pathogen interaction or clearance of Whipple's disease.
- Highlights the importance of thorough histological and ultrastructural examination in diagnosing disseminated infections.