Livedoid vasculopathy

What it is

From: Orphanet

A rare vascular skin disease characterized by recurrent focal non-inflammatory thrombosis of dermal venulae, predominantly of the lower extremities, resulting in a cutaneous response manifested as pruritus and painful papules and erythematous plaques. The lesions evolve into hemorrhagic vesicles or bullae, which rupture and turn into painful ulcers merging into reticulate, confluent, geometric, and painful ulcerations. During a period of a few months, the ulcerations change to porcelain-white atrophic scars with punctate telangiectasia (so-called atrophie blanche). In active disease, lesions in different stages coexist.

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.

Abnormality of the lower limb · Very frequent (99-80%)

An abnormality of the leg.

Livedo racemosa · Very frequent (99-80%)

Livedo racemosa describes a reddish-blue mottling of the skin in an irregular, reticular pattern. It differs from the more common livedo reticularis by its shape. Livedo racemosa consists of broken circular segments resulting in a seemingly larger pattern, as opposed to the fine, regular, complete network of livedo reticularis. Livedo racemosa results from permanent impairment of peripheral blood flow and, unlike livedo reticularis, it persists on warming.

Skin ulcer · Very frequent (99-80%)

A discontinuity of the skin exhibiting complete loss of the epidermis and often portions of the dermis and even subcutaneous fat.

Abnormal capillary morphology · Frequent (79-30%)

A structural anomaly of the tiny blood vessels that connect arterioles with venules and whose walls act as semipermeable membranes that mediate the diffusion of fluids and gases between the blood circulation and body tissues.

Abnormal thrombosis · Frequent (79-30%)

Venous or arterial thrombosis (formation of blood clots) of spontaneous nature and which cannot be fully explained by acquired risk (e.g. atherosclerosis).

Abnormality of complement system · Frequent (79-30%)

An abnormality of the complement system.

Anemia · Frequent (79-30%)

A reduction in erythrocytes volume or hemoglobin concentration.

Atrophic scars · Frequent (79-30%)

Scars that form a depression compared to the level of the surrounding skin because of damage to the collagen, fat or other tissues below the skin.

Autoimmunity · Frequent (79-30%)

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

Cutis marmorata · Frequent (79-30%)

A reticular discoloration of the skin with cyanotic (reddish-blue appearing) areas surrounding pale central areas due to dilation of capillary blood vessels and stagnation of blood within the vessels. Cutis marmorata generally occurs on the legs, arms and trunk and is often more severe in cold weather.

Elevated erythrocyte sedimentation rate · Frequent (79-30%)

An increased erythrocyte sedimentation rate (ESR). The ESR is a test that measures the distance that erythrocytes have fallen after one hour in a vertical column of anticoagulated blood under the influence of gravity. The ESR is a nonspecific finding. An elevation may indicate inflammation or may be caused by any condition that elevates fibrinogen.

Hypercoagulability · Frequent (79-30%)

An abnormality of coagulation associated with an increased risk of thrombosis.

Hyperpigmentation of the skin · Frequent (79-30%)

A darkening of the skin related to an increase in melanin production and deposition.

Lower limb pain · Frequent (79-30%)

An unpleasant sensation characterized by physical discomfort (such as pricking, throbbing, or aching) localized to the leg.

Other findings in the same source

From: Orphanet

Additional reported features include Pedal edema (Frequent (79-30%)); Poor wound healing (Frequent (79-30%)); Recurrent skin infections (Frequent (79-30%)); Telangiectasia of the skin (Frequent (79-30%)); Varicose veins (Frequent (79-30%)); Enlargement of the ankles (Frequent (79-30%)); Hyperpigmented streaks (Frequent (79-30%)); Abnormal circulating lipid concentration (Occasional (29-5%)); Abnormal foot morphology (Occasional (29-5%)); Abnormality of fibrinolysis (Occasional (29-5%)). This is a selected summary, not a complete description of the condition.

When it may begin

From: Orphanet

Adolescent; Adult

Inheritance in the source

From: Orphanet

Not applicable

Frequency and the population described

From: Orphanet

Annual incidence: 1-9 / 100 000; United States; Value and class. Point prevalence: Unknown; Worldwide; Class only.

Which doctor should you see?

The suggested department for discussing Livedoid vasculopathy is Dermatology, with a dermatologist as the relevant type of clinician. Dermatologist; paediatric services for children as appropriate.

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 features of the skin, hair or nails distinguish the possibilities?
• Would photographs over time help document the changes?
• What should be expected from treatment, and how will irritation or other adverse effects be managed?

Treatment discussions and follow-up

The material gathered for this draft does not provide a complete condition-specific treatment pathway for Livedoid vasculopathy. 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.