Autoerythrocyte sensitization syndrome

What it is

From: Orphanet

A rare autoimmune disease with skin involvement characterized by recurrent episodes with isolated or multiple painful edematous inflammatory skin lesions progressing to ecchymoses within 24 hours, due to autosensitization to a stromal component of the patient's own erythrocytes. The development of the lesions is usually preceded by emotional or physical stress, followed by a prodromal stage with fatigue or malaise. Lower limbs and trunk are the most frequently involved sites. Accompanying features may include fever, arthralgia, myalgia, headache, gastrointestinal problems, or hematuria and epistaxis, among others. The disease occurs predominantly in women.

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.

Bruising susceptibility · Very frequent (99-80%)

An ecchymosis (bruise) refers to the skin discoloration caused by the escape of blood into the tissues from ruptured blood vessels. This term refers to an abnormally increased susceptibility to bruising. The corresponding phenotypic abnormality is generally elicited on medical history as a report of frequent ecchymoses or bruising without adequate trauma.

Ecchymosis · Very frequent (99-80%)

A purpuric lesion that is larger than 1 cm in diameter.

Atypical behavior · Frequent (79-30%)

Atypical behavior is an abnormality in a person's actions that can be controlled or modulated by the will of the individual. While abnormal behaviors can be difficult to control, they are distinct from other abnormal actions that cannot be affected by the individual's will.

Pain · Frequent (79-30%)

An unpleasant sensory and emotional experience associated with actual or potential tissue damage, or described in terms of such damage.

Superficial dermal perivascular inflammatory infiltrate · Frequent (79-30%)

Numerous lymphocytes surrounding blood vessels in the superficial part of the dermis.

Abnormality of limbs · Frequent (79-30%)

Abnormality of the face · Occasional (29-5%)

An abnormality of the face.

Abnormality of the nervous system · Occasional (29-5%)

An abnormality of the nervous system.

Anxiety · Occasional (29-5%)

Intense feelings of nervousness, tension, or panic often arise in response to interpersonal stresses. There is worry about the negative effects of past unpleasant experiences and future negative possibilities. Individuals may feel fearful, apprehensive, or threatened by uncertainty, and they may also have fears of falling apart or losing control.

Arthralgia · Occasional (29-5%)

Joint pain.

Asthenia · Occasional (29-5%)

A state characterized by a feeling of weakness and loss of strength leading to a generalized weakness of the body.

Borderline personality disorder · Occasional (29-5%)

A personality disorder characterized by impulsive behavior and unpredictable, capricious mood. Affected individuals show a tendency to have outbursts of emotion and an inability to control these behavioral explosions. They generally experience an intense fear of abandonment or instability and also struggle with feelings of emptiness.

Depression · Occasional (29-5%)

Frequently experiencing feelings of being down, miserable, and/or hopeless; struggling to recover from these moods; having a pessimistic outlook on the future; feeling a pervasive sense of shame; having a low self-worth; experiencing thoughts of suicide and engaging in suicidal behavior.

Diarrhea · Occasional (29-5%)

Abnormally increased frequency (usually defined as three or more) loose or watery bowel movements a day.

Other findings in the same source

From: Orphanet

Additional reported features include Edema (Occasional (29-5%)); Emotional lability (Occasional (29-5%)); Epigastric pain (Occasional (29-5%)); Epistaxis (Occasional (29-5%)); Erythematous plaque (Occasional (29-5%)); Fatigue (Occasional (29-5%)); Fever (Occasional (29-5%)); Headache (Occasional (29-5%)); Hematuria (Occasional (29-5%)); Impaired platelet adhesion (Occasional (29-5%)). This is a selected summary, not a complete description of the condition.

When it may begin

From: Orphanet

Adult

Inheritance in the source

From: Orphanet

Unknown

Frequency and the population described

From: Orphanet

Reported case(s): 170.0; Worldwide. This is a published case count, not prevalence. Point prevalence: <1 / 1 000 000; Worldwide; Class only.

Which doctor should you see?

The suggested department for discussing Autoerythrocyte sensitization syndrome is Allergy and Immunology, with a allergist / clinical immunologist 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.

• Does the history suggest an allergy, an immune problem or another explanation?
• How would any proposed allergy or immune test change care?
• Is an individual emergency plan needed, and who should understand it?

Treatment discussions and follow-up

The material gathered for this draft does not provide a complete condition-specific treatment pathway for Autoerythrocyte sensitization syndrome. 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.