Aggregatibacter actinomycetemcomitans pneumonia with chest and abdominal wall involvement

Iris Storms, Marre Van Den Brand, Peter Schneeberger, Nico Van't Hullenaar

Research output: Contribution to journalArticleAcademicpeer-review

4 Citations (Scopus)


A 54-year-old man presented with a productive cough, chest pain, fever and weight loss. Initial analysis revealed a palpable chest wall mass and consolidation in the left lower lobe and pleural abnormalities on imaging. At that point no infectious cause or malignancy was identified. Microbiological analysis of a needle biopsy from a newly developed abdominal wall mass revealed growth of Aggregatibacter actinomycetemcomitans. The patient was successfully treated with antibiotic therapy for 1 year. Aggregatibacter actinomycetemcomitans is a Gram-negative coccobacillus and is part of the normal oral flora. It is capable of causing infections in humans including periodontitis, soft tissue abscesses and systemic invasive infections, most commonly endocarditis.

Original languageEnglish
Article number217377
JournalBMJ Case Reports
Publication statusPublished - 2017


  • Pneumonia (infectious disease)
  • Pneumonia (respiratory medicine)
  • Respiratory medicine
  • TB and other respiratory infections

Cite this