World journal of clinical cases · 2026
Streptococcus bovis endocarditis secondary to colorectal cancer: A case report.
Клинический случайСтатьяНазвание и аннотация: Перевод в очереди
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Nguyen-Ngo Kyle, Majmudar Vinit H, Jain Aryan, Manem Nihita, Donovan Katherine, Tadros Micheal
Аннотация
BACKGROUND: Streptococcus bovis (S. bovis) bacteremia and infective endocarditis have a well-established association with colorectal cancer (CRC), though the mechanisms underlying this potentially bidirectional relationship remain poorly understood.
CASE SUMMARY: This case report describes a 55-year-old male with a history of hypertension and hemicolectomy due to advanced colorectal adenomas who presented with syncope, septic shock, and a 12-pound weight loss over 3 weeks. Subsequent blood cultures grew S. bovis, with a transthoracic echocardiogram revealed mobile vegetations on both the aortic and mitral valves. A sessile, non-obstructing cecal adenocarcinoma was also observed on colonoscopy. The patient was started on 6 weeks of intravenous ceftriaxone, followed by surgical repair of both heart valves and a laparoscopic right hemicolectomy.
CONCLUSION: This presentation underscores how CRC-induced mucosal disruption may predispose to bacterial translocation, resulting in systemic infection and endocarditis.
CASE SUMMARY: This case report describes a 55-year-old male with a history of hypertension and hemicolectomy due to advanced colorectal adenomas who presented with syncope, septic shock, and a 12-pound weight loss over 3 weeks. Subsequent blood cultures grew S. bovis, with a transthoracic echocardiogram revealed mobile vegetations on both the aortic and mitral valves. A sessile, non-obstructing cecal adenocarcinoma was also observed on colonoscopy. The patient was started on 6 weeks of intravenous ceftriaxone, followed by surgical repair of both heart valves and a laparoscopic right hemicolectomy.
CONCLUSION: This presentation underscores how CRC-induced mucosal disruption may predispose to bacterial translocation, resulting in systemic infection and endocarditis.