Acquired generalized lipodystrophy

What it is

From: Orphanet

A rare lipodystrophic syndrome characterized by loss of adipose tissue, and is a syndrome of insulin resistance that leads to increased cardiovascular risk. Acquired generalized lipodystrophy is related to a selective loss of subcutaneous adipose tissue occurring exclusively at the extremities (face, legs, arms, palms and sometimes soles).

Reported clinical features and what the terms mean

The following findings are associated with this condition in Orphanet. They are not a checklist for diagnosing yourself, and they do not all occur in every affected person. Some are examination, imaging or laboratory findings that cannot be recognised at home.

The frequency labels describe how often a finding was reported among people with the condition in the source. They do not give the chance that a person with that symptom has the condition. Definitions below reproduce HPO terminology; they explain the term, not the likely severity in an individual.

Generalized lipodystrophy · Obligate (100%)

Generalized degenerative changes of the fat tissue.

Hyperinsulinemia · Very frequent (99-80%)

An increased concentration of insulin in the blood.

Insulin resistance · Very frequent (99-80%)

Increased resistance towards insulin, that is, diminished effectiveness of insulin in reducing blood glucose levels.

Abnormal circulating lipid concentration · Frequent (79-30%)

Any deviation from the normal concentration of lipid in the blood circulation.

Abnormality of cardiovascular system physiology · Frequent (79-30%)

Abnormal functionality of the cardiovascular system.

Autoimmunity · Frequent (79-30%)

The occurrence of an immune reaction against the organism's own cells or tissues.

Calf muscle pseudohypertrophy · Frequent (79-30%)

Enlargement of the muscles of the calf due to their replacement by connective tissue or fat.

Cardiomyopathy · Frequent (79-30%)

A myocardial disorder in which the heart muscle is structurally and functionally abnormal, in the absence of coronary artery disease, hypertension, valvular disease and congenital heart disease sufficient to cause the observed myocardial abnormality.

Hepatic steatosis · Frequent (79-30%)

Steatosis is a term used to denote lipid accumulation within hepatocytes.

Insulin-resistant diabetes mellitus · Frequent (79-30%)

A type of diabetes mellitus related not to lack of insulin but rather to lack of response to insulin on the part of the target tissues of insulin such as muscle, fat, and liver cells. This type of diabetes is typically associated with increases both in blood glucose concentrations as well as in fasting and postprandial serum insulin levels.

Progeroid facial appearance · Frequent (79-30%)

A degree of wrinkling of the facial skin that is more than expected for the age of the individual, leading to a prematurely aged appearance.

Abnormality of complement system · Occasional (29-5%)

An abnormality of the complement system.

Acanthosis nigricans · Occasional (29-5%)

A dermatosis characterized by thickened, hyperpigmented plaques, typically on the intertriginous surfaces and neck.

Accelerated skeletal maturation · Occasional (29-5%)

An abnormally increased rate of skeletal maturation. Accelerated skeletal maturation can be diagnosed on the basis of an estimation of the bone age from radiographs of specific bones in the human body.

Other findings in the same source

From: Orphanet

Additional reported features include Acute pancreatitis (Occasional (29-5%)); Cirrhosis (Occasional (29-5%)); Generalized hirsutism (Occasional (29-5%)); Hepatomegaly (Occasional (29-5%)); Hypertension (Occasional (29-5%)); Hypertriglyceridemia (Occasional (29-5%)); Myopathy (Occasional (29-5%)); Panniculitis (Occasional (29-5%)); Proteinuria (Occasional (29-5%)); Generalized hyperpigmentation (Occasional (29-5%)). This is a selected summary, not a complete description of the condition.

When it may begin

From: Orphanet

All ages

Inheritance in the source

From: Orphanet

Not applicable

Frequency and the population described

From: Orphanet

Point prevalence: Unknown; Worldwide; Class only. Point prevalence: 1-9 / 100 000; Europe; Value and class.

Which doctor should you see?

The suggested department for discussing Acquired generalized lipodystrophy is Endocrinology, with a endocrinologist as the relevant type of clinician. General physician / Family Medicine; paediatrician for children. Referral depends on symptoms.

This is an editorial referral starting point. The appropriate clinic depends on the person’s age, symptoms, previous diagnosis and local services. The first clinician can decide whether another specialty or a team is needed; a department label does not confirm the diagnosis.

How to prepare for an assessment

Bring a short timeline of the main symptoms: when they first appeared, whether they are constant or episodic, what seems to change them, and how they affect daily activities. Include previous reports, discharge summaries, current medicines and supplements, allergies, and any relevant family history. A dated record is more useful than trying to match every feature in an online article.

Ask the clinician what is already established and what remains uncertain. If a test is suggested, ask what question it answers, what its limitations are and how the result would change the next step. The information here is not an instruction to arrange every possible test. In children, bring growth, developmental and school information if it is relevant to the concern.

• Which hormone or metabolic finding is important in this case?
• How should test timing and current medicines be taken into account?
• What follow-up would show whether the care plan is working?

Treatment discussions and follow-up

The material gathered for this draft does not provide a complete condition-specific treatment pathway for Acquired generalized lipodystrophy. That gap does not mean that treatment is unavailable. A clinician needs to establish the diagnosis and review current guidance before recommending medicines, procedures, rehabilitation or other support.

Before leaving the appointment, clarify the next review date, who will communicate results, and whom to contact if the situation changes. Discuss difficulties with sleep, work, school, mobility, eating or emotional wellbeing when these are relevant. Practical support may require coordination between the treating clinician and other services.

The collected references do not establish a complete prevention or long-term outlook section for this entry. Missing information should not be interpreted as proof that prevention is impossible or that a particular outcome is inevitable. Ask what is known for the exact subtype, stage and personal circumstances, and which uncertainties remain.

When to seek emergency help

Severe breathing difficulty, collapse, new stroke-like symptoms, a seizure that is prolonged or repeated without recovery, uncontrolled major bleeding, or an immediate risk of self-harm require emergency help. In India, call 112 or reach the nearest emergency department. This is a general, non-exhaustive warning list; it is not a condition-specific triage tool.