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Published on: March 23, 2014
Leprosy in the Upper Midwest
Kathy Bach1, Molly A Hinshaw2, Bridget E Shields3
1University of Wisconsin School of Medicine and Public Health, Madison, Wisconsin.
Introduction:
Leprosy is a life-threatening infection caused by Mycobacterium leprae with an average 5-year long incubation period. It is curable when treated early. Early diagnosis requires knowledge of its myriad clinical features as risk factors may not be readily apparent.
Case Presentation:
We report the case of a male patient from Wisconsin who tested positive for leprosy without a known exposure or recent travel to endemic areas.
Discussion:
The clinical presentation of leprosy exists on a spectrum and correlates with cell immunity levels. The Ridley-Jopling and World Health Organization classifications are used to define leprosy subtypes and guide treatment. Histopathologic examination may aid in diagnosis of suspicious presentations.
Conclusions:
Leprosy may present with nonspecific clinical features and elevated inflammatory markers leading to a misdiagnosis. It should be considered on the differential diagnosis for suspicious presentations and appropriately worked up with various diagnostic modalities. A multidisciplinary approach to treatment may prevent spread and permanent damage.
Insights
Leprosy, a curable infection, can present subtly. Early diagnosis of Mycobacterium leprae is crucial, even without typical risk factors, to prevent permanent damage.
Area of Science:
- Infectious Diseases
- Dermatology
- Microbiology
Background:
- Leprosy is a curable infection caused by Mycobacterium leprae with a long incubation period.
- Early diagnosis is essential for effective treatment and prevention of complications.
- Recognizing diverse clinical presentations is key, as risk factors may not be obvious.
Observation:
- A case of leprosy in a patient from Wisconsin with no known exposure or travel to endemic areas is presented.
- The patient tested positive for leprosy, highlighting the possibility of atypical presentations.
Findings:
- Leprosy clinical presentation varies widely and correlates with immune status.
- Standard classifications (Ridley-Jopling, WHO) help define subtypes and guide treatment.
- Histopathology can assist in diagnosing ambiguous cases.
Implications:
- Leprosy can be misdiagnosed due to nonspecific symptoms and elevated inflammatory markers.
- Consider leprosy in differential diagnoses for suspicious presentations.
- A multidisciplinary approach is vital for treatment, preventing transmission and long-term damage.
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