Strangulated right-sided diaphragmatic hernia presenting and treated as lung empyema: beware of the differential diagnosis.

A 78-year-old man with no surgical history or recent trauma presented to the emergency department with sudden onset right-sided chest pain and dyspnoea. He was admitted under the physicians for investigations and was subsequently diagnosed with empyema of the right thorax. After no improvement with intravenous antibiotics, a chest drain was inserted; no pus was drained. He worsened clinically; a repeated CT scan demonstrated an incarcerated loop of small bowel within the right thoracic cavity secondary to a diaphragmatic hernia (DH). The patient had emergency surgery to remove necrotic small bowel and to lavage the thorax. Strangulated DH should be considered as a differential diagnosis where presentation is unusual and empyema does not improve after initial management.

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Competing interests: None declared.