Arteriovenous malformation - Symptoms and causes - Mayo Clinic
2023年2月18日 · An arteriovenous malformation (AVM) is a tangle of blood vessels that irregularly connects arteries and veins, disrupting blood flow and oxygen circulation. Arteries move oxygen-rich blood from the heart to the brain and other organs. Veins drain the oxygen-depleted blood back to the lungs and heart. When an AVM disrupts this critical process ...
MALFORMATION中文(简体)翻译：剑桥词典 - Cambridge Dictionary
the condition of being wrongly formed, or a part of something, such as part of the body, that is wrongly formed. 畸形（体）;变形（体） Exposure to radiation can lead to malformation of the …
Malformation | Causes, Types & Treatment | Britannica
Malformation, in biology, irregular or abnormal structural development. Malformations occur in both plants and animals and have a number of causes. The processes of development are regulated in such a way that few malformed organisms are found.
Chiari malformation - Symptoms and causes - Mayo Clinic
2023年10月20日 · Chiari malformation (kee-AH-ree mal-for-MAY-shun) is a condition in which brain tissue extends into the spinal canal. It occurs when part of the skull is misshapen or smaller than is typical. The skull presses on the brain and forces it downward.
Vascular Malformations: Symptoms, Treatment and Outlook - Cleveland Clinic
2022年7月6日 · Vascular malformations, or abnormal blood vessel changes, include venous malformations and arteriovenous malformations (AVMs). They may look like birthmarks that develop during infancy. AVMs can form in the brain or spine, causing life-threatening problems. Treatments can close the affected blood vessels.
Central nervous system vascular malformations - Mayo Clinic
2023年5月27日 · Central nervous system vascular malformations are rare issues with the blood vessels in the brain or spinal cord and their coverings, called membranes. There are several types of central nervous system vascular malformations, including: Arteriovenous malformations (AVMs). These are unusual tangles of blood vessels that connect arteries and veins.
Vascular Malformations: A Review - PMC - PubMed Central (PMC)
The goal of this article is to provide a review of vascular malformations, organized by subtype, including capillary, venous, lymphatic and arteriovenous malformations. Only by developing a clear understanding of the clinical aspects, diagnostic tools, imaging modalities, and options for intervention will appropriate care be provided and ...
Arteriovenous Malformations of the Central Nervous System
2024年3月4日 · Arteriovenous malformations (AVMs) are abnormal fistulas between arteries and veins without an intervening capillary bed. High arterial flow directly into venous structures can lead to disruption of the venous walls and ultimately cause fatal hemorrhage.
Congenital disorders - World Health Organization (WHO)
2023年2月27日 · Congenital disorders are also known as congenital abnormalities, congenital malformations or birth defects. They can be defined as structural or functional anomalies (for example, metabolic disorders) that occur during intrauterine life and can be identified prenatally, at birth, or sometimes may only be detected later in infancy, such as ...
Vascular and Lymphatic Malformations – Perspectives from …
Vascular malformations, affecting ~1%-1.5% of the population, comprise a spectrum of developmental patterning defects of capillaries, arteries, veins, and/or lymphatics. The majority of vascular malformations occur sporadically; however, inherited malformations exist as a part of complex congenital diseases.