Inflammatory cardiomyopathy of possibly overlapping aetiology: a case posing treatment dilemma and potential
Shun Nakagama1, Katherine Candray2,3, Tasuku Yamamoto1
1Department of Cardiovascular Medicine, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University, Tokyo, Japan.
Insights
A patient with Chagas disease and sarcoidosis presented with atrioventricular block. The study explores the rare coexistence of these conditions and their potential impact on cardiac manifestations.
Area of Science:
- Cardiology
- Infectious Diseases
- Pulmonology
Background:
- A 52-year-old Brazilian immigrant with a history of chronic kidney disease and uveitis presented with symptomatic atrioventricular block.
- Her endemic origin for Trypanosoma cruzi infection prompted suspicion for Chagas disease, confirmed serologically.
Observation:
- Further investigation revealed a pulmonary nodular lesion, biopsied as a sarcoid epithelioid granuloma.
- Renal and ocular involvement suggested systemic sarcoidosis extension.
- Cardiac imaging did not reveal myocardial inflammation.
Findings:
- The case presents a rare instance of coexisting Chagas disease and sarcoidosis.
- Histologically proven sarcoidosis raises the possibility of cardiac involvement from both conditions.
- The patient experienced symptomatic atrioventricular block.
Implications:
- This case highlights a diagnostic and treatment challenge in a globalized world.
- It raises intriguing questions about the potential association between Chagas disease and cardiac sarcoidosis.
- Further research is warranted to understand the interplay between these two distinct pathologies.
Abstract:
We report on a 52-year-old Brazilian immigrant woman with past histories of chronic kidney disease and uveitis, presenting with symptomatic atrioventricular block. Her country of origin being endemic for Trypanosoma cruzi infection, we suspected Chagas disease as the aetiology, diagnosis of which was confirmed by serological tests. Further systemic workup identified an emerging nodular lesion in the lung, which turned out to be a sarcoid epithelioid granuloma on biopsy. Involvement of the kidneys and eyes was suggestive of systemic extension of the lung sarcoidosis. Although imaging modalities did not detect inflammatory foci in the myocardium, the rare coexistence of histologically proven sarcoidosis raised the intriguing concept of cardiac manifestation having arisen from two possibly overlapping aetiologies: Chagas disease and cardiac sarcoidosis. The case highlights a treatment dilemma increasingly likely to be encountered in this globalized world, and also raises the potential, but intriguing, association of these two diseases.
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