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Skin Biopsy for Diagnosing Discoid Lupus Erythematosus
Published on: June 10, 2025
[First centenary of Whipple's disease]
José Montes Montes1, Roberto Flores Guerrero, Lilian Hernández Mendoza
1Servicio de alergia e inmunología clínica del Hospital General de México, OD. majosev@prodigy.net.mx
Abstract:
Whipple's disease is an infrequent multisystemic infection caused by a gram-positive bacterium: Tropheryma whippelii, which after several studies has been characterized as an actinomiceto por 16Sr RNA. It occurs with multiple symptoms, the principal of which are diarrhea, weight loss, stomach pain and arthralgias. Arthritis or artralgia may appear as an isolated symptom and eventually through the years additional digestive, cardiovascular and/or neurological symptoms arise. Diverse immunological abnormalities usually present before or after clinical symptoms are first discovered. Currently there are cabinet, endoscopic, radiological, tomographic and laboratory studies which can help to make a definitive diagnosis, such as the duodenal biopsy submitted to the Schiff test, to the polimerasa chain or an electronic microscopy in order to see the intracellular bacteria in the macrophage and for immunohistochemistry to see specific antibodies to Whipple's disease. Treatment is trimetoprim/sulfametoxazol, it is suggested transfer factor too.
Insights
Whipple's disease is a rare bacterial infection affecting multiple body systems. Diagnosis involves various tests, and treatment typically includes trimethoprim/sulfamethoxazole.
Area of Science:
- Infectious Diseases
- Microbiology
- Gastroenterology
Context:
- Whipple's disease is a rare, multisystemic infection caused by Tropheryma whippelii.
- The bacterium, identified as an actinomycete via 16S rRNA, presents with diverse symptoms including diarrhea, weight loss, abdominal pain, and arthralgias.
- Immunological abnormalities often precede or accompany clinical manifestations.
Purpose:
- To summarize the key aspects of Whipple's disease, covering its causative agent, clinical presentation, diagnostic methods, and treatment options.
- To provide an overview of the current understanding and management of this infrequent infection.
Summary:
- Whipple's disease is caused by Tropheryma whippelii, a gram-positive bacterium.
- Principal symptoms include diarrhea, weight loss, abdominal pain, and arthralgias, potentially progressing to digestive, cardiovascular, and neurological issues.
- Diagnostic tools include duodenal biopsy (Schiff test, PCR, electron microscopy, immunohistochemistry), alongside cabinet, endoscopic, radiological, and tomographic studies.
- Treatment primarily involves trimethoprim/sulfamethoxazole, with transfer factor as a potential adjunct.
Impact:
- Enhances understanding of a rare infectious disease.
- Highlights the importance of multi-faceted diagnostic approaches.
- Informs clinical management strategies for Whipple's disease.
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