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Hereditary Hemorrhagic Telangiectasia Type 4 C1857688

Published: July 22, 2026Updated: August 25, 2026

A hereditary condition causing abnormal blood vessel development similar to other HHT types. Results in nosebleeds, visible blood vessel spots, and possible organ involvement. Treatment addresses bleeding episodes and vascular lesions.

Medically reviewed by WellAlly Editorial TeamLast reviewed August 25, 2026Editorial policy

Key facts at a glance

ICD-10
Q24.9
ICD-11
LA00.0
Body system
cardiovascular
Severity
moderate
Chronic
true

Treatment options

Evidence-based approaches to managing this condition.

First-line treatments

1

Disease management and monitoring

Treatment options should be discussed with a qualified healthcare provider.

lifestyle
2

Systemic antifibrinolytic agents

Long-term tranexamic acid therapy to reduce bleeding frequency from mucocutaneous telangiectasias and visceral AVMs by inhibiting fibrinolysis at bleeding sites.

medication
3

Endovascular embolization of AVMs

Transcatheter embolization of arteriovenous shunts in lungs, brain, or liver to eliminate right-to-left shunting and prevent paradoxical embolic complications.

surgical

Additional treatment options

Parenteral iron replacement therapy

Intravenous iron formulations for severe iron deficiency anemia secondary to chronic hemorrhage, when oral iron is inadequate or poorly tolerated.

medication

Radiofrequency ablation for telangiectasias

Application of radiofrequency energy to thermally destroy mucosal and cutaneous telangiectasias, reducing nosebleeds and skin bleeding in accessible areas.

procedure

Comprehensive HHT center surveillance program

Regular multidisciplinary follow-up including ENT, gastroenterology, pulmonology, and genetics to monitor for new AVM development and manage complications proactively.

monitoring

Medication Comparisons

Compare medications used to treat Hereditary Hemorrhagic Telangiectasia Type 4 C1857688. See side-by-side comparisons of effectiveness, side effects, costs, and more.

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This information is for educational purposes only and is not a substitute for professional medical advice, diagnosis, or treatment.

Medical Disclaimer

This content is for general informational and educational purposes only and is not a substitute for professional medical advice, diagnosis, or treatment. Always seek the guidance of a qualified healthcare provider with any questions you have about a medical condition, and never disregard professional medical advice or delay seeking it because of something you read here.

If you think you may have a medical emergency, call your local emergency number or go to the nearest emergency department immediately.

Medically reviewed by WellAlly Editorial Team Last reviewed August 25, 2026. · Read our editorial policy