Abstract
The Doege-Potter syndrome is a rare paraneoplastic syndrome, first described by Doege and Potter in 1930, that usually involves solid fibrous pleural tumours. Hypoglycaemia is a rare complication of these tumours, due to secretion of insulin-like growth factors, and it can be the presenting symptom. The incidence of malignancy is low, about 12-15 %. An 81-year-old Caucasian man, operated on 20 years previously for a benign pleural fibroma, presented with several episodes of loss of consciousness due to profound hypoglycaemia and a history of increasing dyspnea. The chest X-ray revealed an intrathoracic mass. Following excision histological examination confirmed recurrence with malignant transformation to a high-grade sarcoma. The Doege-Potter syndrome is a rare condition but it should be suspected in episodes of hypoglycaemia associated with a history of dyspnea. These patients should be followed up postoperatively because of the risk of tumour recurrence.
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