Hepatopulmonary syndrome (HPS) is characterised by the development of intrapulmonary arteriovenous blood shunts and vascular dilatation with consequent hypoxaemia, usually in the context of end-stage liver disease (ESLD). The estimated incidence of HPS in ESLD has been reported to be 13%–47%. Chronic liver disease has been described in patients with hypothalamic–pituitary dysfunction, mainly in the form of non-alcoholic fatty liver disease due to metabolic syndrome, with occasional progression to cirrhosis. We report a challenging case of a 27-year-old man with a background of hypopituitarism with no known liver disease who presented with progressive dyspnoea and hypoxaemia and was eventually diagnosed with severe HPS.
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