A rare case of disseminated actinomycosis caused by Actinomyces meyeri.

A case of disseminated actinomycosis caused by Actinomyces meyeri in a 43-year-old man is described. The patient presented with signs of pericarditis, weight loss, dry cough, and subsequently an inferior vena cava syndrome. Diagnosis of thoracic as well as abdominal actinomycosis was made 4 months after admission. This article stresses the importance of considering the diagnosis of the disease. Cure was achieved by administering penicillin for several months.