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Normolipemic subcutaneous xanthomatosis.

R Fleischmajer, E J Schaefer, A E Gal

The American Journal of Medicine

|December 1, 1983

Summary

This study details a rare xanthomatosis case in a diabetes mellitus patient, affecting subcutaneous tissue and vocal cords. Despite normal lipid profiles, analysis revealed similarities to type V hyperlipidemia xanthomas, with an unknown underlying mechanism.

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Area of Science:

Endocrinology
Dermatology
Pathology

Background:

Diabetes mellitus is a common metabolic disorder.
Xanthomatosis is a condition characterized by the deposition of lipids in tissues.
Unusual presentations of xanthomatosis can occur, particularly in patients with metabolic diseases.

Observation:

A patient with diabetes mellitus presented with extensive xanthomatosis affecting subcutaneous tissue and vocal cords.
Skin lesions were minimal, but internal involvement was significant.
Standard plasma lipid, lipoprotein, apolipoprotein, and cholestanol levels were within normal ranges.

Findings:

Electron microscopy revealed macrophages containing vacuolar and crystalline lipid inclusions within the xanthoma lesions.

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Lipid and enzyme analysis of the xanthoma tissue showed similarities to those found in patients with diabetes mellitus and type V hyperlipidemia.

The specific pathogenic mechanism driving this unusual xanthomatosis remains undetermined.

Implications:

This case highlights the diverse and sometimes atypical manifestations of metabolic derangements in diabetes mellitus.
Further research is needed to elucidate the precise mechanisms behind such unusual lipid deposition disorders.
Understanding these mechanisms could lead to improved diagnostic and therapeutic strategies for complex lipid metabolism abnormalities.