Post-mortem findings in familial partial lipodystrophy, Dunnigan variety

W. A. Haque, F. Vuitch, Abhimanyu Garg

Research output: Contribution to journalArticlepeer-review

38 Scopus citations

Abstract

Aims: Familial partial lipodystrophy, Dunnigan variety (FPLD), is an autosomal dominant disorder due to missense mutations in the lamin A/C gene and is characterized by gradual loss of subcutaneous fat from the extremities and trunk, fat accumulation in the head, neck and intra-abdominal areas, insulin resistance and its metabolic complications. We studied autopsy findings in two patients with FPLD to determine fat distribution and organ involvement. Results: Patient 1, a 66-year-old woman with the R482Q mutation, had diabetes mellitus, dyslipidaemia, and coronary artery disease and died suddenly. Autopsy confirmed the typical body fat distribution and further revealed excess fat deposition in the subpectoral regions extending to the axillae, in the axillary lymph nodes and in the retroperitoneum. Atherosclerotic vascular disease including old infarcts of the myocardium, temporal lobe and kidneys were noted. Severe amyloidosis of the pancreatic islets and grouped muscle atrophy of the quadriceps and diaphragmatic muscles were present. Patient 2, a 29-year-old woman belonging to a pedigree with the R62G mutation, died of hyperlipidaemia-induced acute pancreatitis. Autopsy of patient 2 revealed extensive pancreatitis, hepatic steatosis and polycystic ovaries. Conclusions: Our study confirms typical body fat distribution and describes new sites of excess fat deposition. Our data show predisposition to atherosclerosis and polycystic ovaries and suggest that pancreatic amyloidosis may underlie development of hyperglycaemia in FPLD patients.

Original languageEnglish (US)
Pages (from-to)1022-1025
Number of pages4
JournalDiabetic Medicine
Volume19
Issue number12
DOIs
StatePublished - 2002

Keywords

  • Familial
  • Islet amyloidosis
  • Lamin A/C
  • Lipodystrophy
  • Polycystic ovaries

ASJC Scopus subject areas

  • Internal Medicine
  • Endocrinology, Diabetes and Metabolism
  • Endocrinology

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