Periodontal Ehlers-Danlos syndrome

What it is

From: Orphanet

A rare type of Ehlers-Danlos syndrome characterized by childhood or adolescence onset of severe, intractable periodontitis, lack of attached gingiva, and presence of pretibial plaques. Additional manifestations are easy bruising, hypermobility mainly of the distal joints, skin hyperextensibility and fragility, abnormal scarring, recurrent infections, hernias, marfanoid facial features, acrogeria, and prominent vasculature.

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.

Erythematous plaque · Very frequent (99-80%)

A plaque (a solid, raised, plateau-like (flat-topped) lesion greater than 1 cm in diameter) with a red or reddish color often associated with inflammation or irritation.

Pretibial hyperpigmentation · Very frequent (99-80%)

Pretibial plaques occur in a specific pattern with hyperpigmentation, atrophy or induration and scarring of the lower limbs typically over the pretibial area. Hyperpigmentation appears to develop gradually from mild, brownish hyperpigmented patches clinically in keeping with haemosiderin deposition, to indurated or atrophic plaques and can progress to cover the entire circumference of the calf. Plaques are often associated with skin fragility, whether atrophic or indurated. They are thought to be a result of extensive bruising and confluent atrophic scars because of the increased fragility of dermis and small blood vessels.

Severe periodontitis · Very frequent (99-80%)

Increased susceptibility to periodontitis, as manifested by severe periodontal infection with rapid alveolar bone loss, tooth mobility, and premature tooth exfoliation.

Agenesis of permanent teeth · Frequent (79-30%)

A congenital defect characterized by the absence of one or more permanent teeth, including oligodontia, hypodontia, and adontia of the of permanent teeth.

Anxiety · Frequent (79-30%)

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.

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.

Enamel hypoplasia · Frequent (79-30%)

Developmental hypoplasia of the dental enamel.

Fragile skin · Frequent (79-30%)

Skin that splits easily with minimal injury.

Gingival recession · Frequent (79-30%)

The loss of gum tissue. The result is that gum tissue is recessed and its position on the tooth is lowered, exposing the roots of the teeth.

Headache · Frequent (79-30%)

Cephalgia, or pain sensed in various parts of the head, not confined to the area of distribution of any nerve.

Hoarse voice · Frequent (79-30%)

Hoarseness refers to a change in the pitch or quality of the voice, with the voice sounding weak, very breathy, scratchy, or husky.

Hyperextensible skin · Frequent (79-30%)

A condition in which the skin can be stretched beyond normal, and then returns to its initial position.

Joint hypermobility · Frequent (79-30%)

The capability that a joint (or a group of joints) has to move, passively and/or actively, beyond normal limits along physiological axes.

Other findings in the same source

From: Orphanet

Additional reported features include Microdontia (Frequent (79-30%)); Poor wound healing (Frequent (79-30%)); Pulp calcification (Frequent (79-30%)); Recurrent infections (Frequent (79-30%)); Thin skin (Frequent (79-30%)); Varicose veins (Frequent (79-30%)); Atrophy of alveolar ridges (Frequent (79-30%)); Hypoplasia of the dental root (Frequent (79-30%)); Abnormally high-pitched voice (Occasional (29-5%)); Depression (Occasional (29-5%)). This is a selected summary, not a complete description of the condition.

When it may begin

From: Orphanet

Childhood

Inheritance in the source

From: Orphanet

Autosomal dominant

Frequency and the population described

From: Orphanet

Reported case(s): 62.0; Worldwide. This is a published case count, not prevalence. Point prevalence: Unknown; Worldwide; Class only.

Understanding the inheritance label

From: MedlinePlus Genetics

An autosomal dominant pattern means that one altered copy of a relevant gene can be sufficient for the condition. Some affected people inherit the change; others have a new change without an affected parent. The precise finding, family history and condition determine what this means for relatives.

Which doctor should you see?

The suggested department for discussing Periodontal Ehlers-Danlos syndrome is Rheumatology, with a rheumatologist as the relevant type of clinician. General physician / Family Medicine; paediatrician for children. Referral depends on symptoms.

Additional services that may be relevant, depending on the findings, include: Clinical Genetics.

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.

• Are the findings inflammatory, structural or due to another mechanism?
• Is there evidence that other organs need assessment?
• How will function and any treatment-related risks be monitored?

Treatment discussions and follow-up

The material gathered for this draft does not provide a complete condition-specific treatment pathway for Periodontal Ehlers-Danlos 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.