Respiratory symptoms of an abdominal origin

Description

A 75-year-old, fully dependent woman was sent to the emergency department due to a sudden onset of fever (38°C), polypnoea and dyspnoea. The patient had a history of Parkinson's disease and vascular dementia, making it impossible to cooperate in the medical interview. She was feverish, breathing rapidly, although haemodynamically stable and with peripheral oxygen saturation of over 95%. Blood tests showed increase in C-reactive protein (8.51 mg/dL), leucocytosis (13x10⁹/L, 67% neutrophils and 23.1% lymphocytes) and slight hypokalaemia (3 mmol/L), without respiratory insufficiency in the arterial blood. Chest X-ray showed no clear infectious consolidation.

Acute tracheobronchitis was assumed, so she was given an antibiotic and potassium chloride and was discharged. The patient returned the next day without fever but with all of the other symptoms, adding to them prostration. She was still breathing rapidly but her abdomen was larger and tympanic, with noticeable pain while it was being palpated, adding therefore...

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