PMID: 2116946Jun 1, 1990Paper

Metabolic effects of an insulin-like factor causing hypoglycaemia in a patient with a haemangiopericytoma

Clinical Endocrinology
J J BennP H Sonksen

Abstract

We have studied a patient with fasting hypoglycaemia and skin lesions (sign of Leser-Trélat) related to a retroperitoneal haemangiopericytoma in whom removal of the tumour resulted in immediate cure of hypoglycaemia. Before removal of the tumour, severe fasting hypoglycaemia was associated with undetectable insulin and C-peptide levels. She required 16.9 mumol/kg/min (10.4 g/h) of glucose intravenously to prevent hypoglycaemia and endogenous glucose production (measured using tritiated glucose) was suppressed to 1.3 mumol/kg/min while the whole-body glucose utilization rate was elevated at 18.2 mumol/kg/min. After removal of the tumour both endogenous glucose production rate and utilization rate returned to normal (11.5 mumol/kg/min). Resting energy expenditure, measured by indirect calorimetry, was markedly elevated at 2109 kcal/day (161% of predicted) and fell to 1205 (97% of predicted) after the tumour was removed. Glucose oxidation was also enhanced at 8.5 mumol/kg/min and fell to 3.3 mumol/kg/min after removal of the tumour. Other metabolites and hormones measured, and their response to oral glucose, were all consistent with the presence of a circulating substance with similar properties to insulin. We conclude that her hy...Continue Reading

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