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Summary
Multiple symmetric lipomatosis (MSL) presents with severe neuropathy and deep lipoma locations. These, along with mediastinal masses, are key complications requiring attention.
Area of Science:
- Endocrinology
- Neurology
- Genetics
Background:
- Multiple symmetric lipomatosis (MSL) is a rare condition characterized by excessive adipose tissue growth.
- Previous studies have not fully delineated the spectrum of clinical manifestations and complications associated with MSL.
Purpose of the Study:
- To systematically investigate and describe novel clinical features and complications of MSL.
- To elucidate the metabolic abnormalities and potential contributing factors in MSL patients.
Main Methods:
- Systematic clinical survey of 19 male patients with MSL.
- Computed tomography (CT) for identifying lipoma location.
- Assessment of metabolic parameters, including lipoprotein lipase activity and lipolysis.
- Evaluation of alcohol intake and related health issues.
- 8-year follow-up of nine patients.
Main Results:
- All patients exhibited severe peripheral and autonomic neuropathy.
- Mediastinal lipomas were found in 5 patients, causing space-occupying syndromes in 4.
- Deep lipomas below the trapezius muscle were observed in 7 patients.
- 10 patients had alcohol-related liver function abnormalities and macrocytosis/anemia.
- MSL is associated with increased adipose tissue lipoprotein lipase activity, hyperalphalipoproteinemia, and defective adrenergic-stimulated lipolysis.
- Peripheral neuropathies and mediastinal syndromes are incapacitating and can progress rapidly.
Conclusions:
- MSL encompasses significant neurological and structural complications.
- Metabolic derangements and alcohol consumption play a role in MSL.
- Early recognition and management of neuropathy and mediastinal masses are crucial for patient outcomes.