Marantic Endocarditis and Lung Adenocarcinoma with Brain Metastasis: A Diagnostic Conundrum
Bibliographic record
Abstract
Neurological symptoms such as headache and blurring of vision could be a manifestation of an underlying lung adenocarcinoma. The objective of this case report is to unveil the possible differentials and processes involved in the diagnosis of marantic endocarditis. A 57-year old male with blurring of vision and brain CT revealing multiple abscesses, sterile on culture, was treated as per guidelines. However, the patient had recurrent complaints that reinforced recurrent admissions and the patient was found to be COVID-19 positive during the pandemic when a routine test was performed in the emergency department. Suspicious lesions on the chest X-ray were further scrutinised and the patient was diagnosed with lung adenocarcinoma. To further investigate the sterile cultures in the brain, a cardiologist’s opinion was taken and a transthoracic echocardiogram was done, which was unremarkable. The increased suspicion for non-infective endocarditis necessitated a transoesophageal echocardiogram, which was positive for vegetations on the aortic valve. The patient was treated with anticoagulants and chemotherapy. In conclusion, in patients with CT findings of abscesses and sterile cultures, it is crucial to investigate the possible differentials in a meticulous fashion, as there could be an undiagnosed lung cancer in a non-smoker and there is a rare possibility of a sterile vegetation on the aortic valve, as was seen in the authors’ case.
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How this classification was reachedexpand
Full frame distilled prediction
Teacher imitationNot calibrated prevalence, not ground truth. Human validation pending. Learned from the 10,348 direct Codex labels and 10,348 direct Gemma labels. Candidate is the union of thresholded teacher heads; consensus is their intersection. These outputs are machine_predicted_unvalidated and are not human labels or direct frontier model labels.
Codex and Gemma teacher scores by category
| Category | Codex | Gemma |
|---|---|---|
| Metaresearch | 0.000 | 0.001 |
| Meta-epidemiology (narrow) | 0.000 | 0.000 |
| Meta-epidemiology (broad) | 0.001 | 0.000 |
| Bibliometrics | 0.000 | 0.000 |
| Science and technology studies | 0.000 | 0.000 |
| Scholarly communication | 0.000 | 0.000 |
| Open science | 0.000 | 0.000 |
| Research integrity | 0.000 | 0.000 |
| Insufficient payload (model declined to judge) | 0.000 | 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 teacher head, 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".