Infective endocarditis caused by Listeria monocytogenes forming a pseudotumor

Akiko Uehara Yonekawa, Sho Iwasaka, Hisataka Nakamura, Mitsuhiro Fukata, Masako Kadowaki, Yujiro Uchida, Keita Odashiro, Shinji Shimoda, Nobuyuki Shimono, Koichi Akashi

Research output: Contribution to journalArticle

1 Citation (Scopus)

Abstract

A 73-year-old woman with breast cancer and metastasis under chemotherapy suffered from fever, pleural effusion and pericardial effusion. Despite the administration of treatment with cefozopran and prednisolone, the patient's fever relapsed. An electrocardiogram identified a new complete atrioventricular block and an echocardiogram revealed vegetation with an unusual pseudotumoral mass in the right atrium. Blood cultures grew Listeria monocytogenes. The patient was eventually diagnosed with right-sided infective endocarditis, which improved following the six-week administration of ampicillin and gentamicin. Homemade yoghurt was suspected to be the cause of infection in this case. Listeria endocarditis is rare; however, physicians should pay more attention to preventing this fatal disease in immunocompromised patients.

Original languageEnglish
Pages (from-to)1029-1032
Number of pages4
JournalInternal Medicine
Volume53
Issue number9
DOIs
Publication statusPublished - 2014

All Science Journal Classification (ASJC) codes

  • Internal Medicine

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