Medically Managed Locally Acquired Pulmonary Cystic Echinococcosis With Bacterial Superinfection in Northern Canada: A Case Report
Bibliographic record
Abstract
Background: Primary pulmonary cystic echinococcosis (CE) is a zoonotic disease often caused by Echinococcus granulosus sensu lato complex. Although rare in North America, it can present significant diagnostic and therapeutic challenges. Case Presentation: We report a 36‐year‐old male from Quebec, Canada, with locally acquired primary pulmonary CE who presented to the emergency department with a two‐month history of shortness of breath, cough, and hemoptysis. Laboratory investigations showed mild leukocytosis and high eosinophil counts. A chest computed tomography (CT) scan revealed extensive multifocal consolidation in the right upper lobe (RUL) with a large 6‐cm thick‐walled cavity. Echinococcus serology was positive. Treatment was initiated with albendazole and praziquantel as well as antibiotics for pulmonary CE, with likely ruptured cyst and bronchoalveolar spillage complicated by a superimposed bacterial infection of the RUL. Follow‐up imaging showed a decrease in the size of the cavitary lesion and regression of adjacent consolidations. Discussion: Diagnosing and managing pulmonary CE is complex, as clinical presentations vary and imaging and serological tests have limitations. Treatment depends on factors such as cyst size, rupture status, and infection, with surgery as the main approach for viable cysts and albendazole used for ruptured cysts. Conclusion: Pulmonary CE requires individualized management due to its varied presentations, with imaging and serology playing key but limited roles in the diagnosis. Medical management and monitoring were effective, while surgery was reserved for complex cases, with long‐term follow‐up and family screening essential for detecting recurrence and asymptomatic cases.
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How this classification was reachedexpand
Full frame machine prediction
Teacher imitationNot calibrated prevalence, not ground truth. Human validation pending. The Gemma side is a direct model label for every work in the frame, read from the title-only record. The Codex side is a classifier learned from the 10,348 direct Codex labels and calibrated to design-weighted sample rates; fields without enough sample support carry no Codex call. Candidate is the union of the two sides; consensus is their intersection. These outputs are machine_predicted_unvalidated and are not human labels.
Distilled classifier scores by category (both heads)
| Category | Codex | Gemma |
|---|---|---|
| Metaresearch | 0.000 | 0.002 |
| Meta-epidemiology (narrow) | 0.002 | 0.001 |
| Meta-epidemiology (broad) | 0.001 | 0.001 |
| Bibliometrics | 0.002 | 0.003 |
| Science and technology studies | 0.007 | 0.002 |
| Scholarly communication | 0.002 | 0.001 |
| Open science | 0.001 | 0.002 |
| Research integrity | 0.003 | 0.003 |
| Insufficient payload (model declined to judge) | 0.002 | 0.000 |
Machine scores (provisional)
The two teacher heads of the student model, read on this work. A score orders the frame for review; it never asserts a category, and the validation status ships verbatim with every row.
Baseline scores from an immature model (maturity gate not passed, 7 training rounds). Scores rank; they never assert a category.
score_only:v0-immature-baseline · verbatim from the scoring run: score_only means the number may rank works, and no category label ships from itClassification
machine, unvalidatedMachine predicted; a candidate call from one source (direct Gemma or distilled Codex), not a consensus.
How this classification was reached, model by model and score by score, is at the end of the page under "How this classification was reached".