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Community-Acquired Pneumonia Manifested by Acute Abdominal Pain: A Case Report.
Siwar Belhaj Salem1, Ariba Furqan2, Ramla Mohamed Farah Roble3
1Department of Family Medicine, Faculty of Medicine of Monastir, Monastir, Tunisia, um.rnu.tn.
Case Reports in Infectious Diseases
|June 19, 2026
Summary
This case report details a young male with atypical community-acquired pneumonia (CAP) presenting as severe abdominal pain. Early recognition of CAP, even with unusual symptoms, is crucial for prompt diagnosis and effective treatment.
Area of Science:
- Medicine
- Pulmonology
- Infectious Diseases
Background:
- Pneumonia commonly presents with respiratory symptoms but can manifest atypically.
- Nonspecific symptoms like abdominal pain can mask pneumonia, leading to diagnostic delays.
Purpose of the Study:
- To report a case of community-acquired pneumonia (CAP) presenting with severe abdominal pain.
- To emphasize the importance of considering CAP in the differential diagnosis of acute abdominal pain.
Main Methods:
- Case report of a previously healthy 24-year-old male.
- Clinical examination, chest X-ray, and sputum analysis were used for diagnosis.
- Treatment involved intravenous and oral antibiotics.
Main Results:
- The patient presented with right upper quadrant abdominal pain and fever, initially mimicking other conditions.
- Worsening symptoms led to the identification of community-acquired pneumonia (CAP) caused by Streptococcus pneumoniae.
- Chest X-ray confirmed a right lower lobe infiltrate.
Conclusions:
- Atypical presentations of CAP, such as abdominal pain, require high clinical suspicion.
- Considering CAP in the differential diagnosis of acute abdominal pain is vital to prevent misdiagnosis and ensure timely intervention.
- This case highlights the need for awareness of varied CAP presentations.
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