Case Report: Generalized lipodystrophy following immune-checkpoint inhibitor therapy
Abstract
Immune-related adverse events secondary to immune checkpoint inhibitors (ICI) are increasingly recognised. Lipodystrophy is a rare condition which results in the selective loss of adipose tissue. We describe a case of a 48-year-old woman who had been treated with pembrolizumab for lymph node-positive breast cancer. She was referred to the diabetes service for worsening hyperglycemia, hypertriglyceridemia, and rapid onset of weight loss which occurred a year into pembrolizumab therapy. Examination was consistent with a diagnosis of severe lipodystrophy with severe loss of facial and limb adipose tissue. Investigations including a low leptin level and loss of adiposity on whole body composition analysis were consistent with this diagnosis. A trial of pioglitazone was associated with an improvement in insulin resistance and hypertriglyceridemia, although no improvement in her facial lipodystrophy was observed.
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Evidence Hub reads this as a case report, done in people. Its evidence level is 5 of 5 (Very low · case / narrative / animal / in vitro / in silico). Case reports, narrative reviews, and animal, cell or computer-model studies give the weakest evidence for human health.
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