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Cerebral Whipple's disease. Diagnosis by brain biopsy
Abstract:
Whipple's disease, a multisystem chronic granulomatous disease treatable by antibiotics, usually presents clinically with gastrointestinal or joint symptoms. Usually, the diagnosis is substantiated by small intestinal biopsy. This shows diastase-resistant periodic-acid-Schiff-(PAS)-positive inclusions in the cytoplasm of macrophages within the lamina propria. By electron microscopy, this PAS-positive material consists of 1.5 X 0.2-mum bacilli and fine fibrillar material within macrophage phagolysosomes. Rarely, Whipple's disease presents clinically as a primary neurologic disease without gastrointestinal symptoms. Because untreated cerebral Whipple's disease usually progresses rapidly to death, it is imperative to establish the diagnosis promptly. This report describes a case of cerebral Whipple's disease without gastrointestinal symptoms that was diagnosed early by light-and electron-microscopic study of brain biopsy material.
Insights
Whipple's disease, a rare neurological condition, can be diagnosed early via brain biopsy. Prompt diagnosis of this treatable infection is crucial for patient outcomes.
Area of Science:
- Infectious Diseases
- Neurology
- Gastroenterology
Background:
- Whipple's disease is a chronic, granulomatous infection typically presenting with gastrointestinal or joint issues.
- Diagnosis usually relies on small intestinal biopsy revealing characteristic PAS-positive inclusions.
- Rarely, Whipple's disease manifests neurologically without GI symptoms, posing diagnostic challenges.
Observation:
- This case highlights a rare presentation of Whipple's disease primarily affecting the brain.
- The patient exhibited no typical gastrointestinal symptoms.
- Diagnosis was achieved through prompt analysis of brain biopsy material.
Findings:
- Light and electron microscopy of brain biopsy confirmed Whipple's disease.
- Microscopic examination identified diastase-resistant, PAS-positive inclusions consistent with the causative bacilli.
- The findings underscore the utility of brain biopsy in diagnosing atypical Whipple's disease presentations.
Implications:
- Early diagnosis of cerebral Whipple's disease is critical due to its rapid progression and potential lethality.
- This case emphasizes the importance of considering Whipple's disease in neurological presentations, even without GI involvement.
- Microscopic examination of brain biopsies is a valuable tool for timely diagnosis and treatment initiation.