Angiomas are

benign tumor A benign tumor is a mass of Cell (biology), cells (tumor) that does not Cancer invasion, invade neighboring tissue or Metastasis, metastasize (spread throughout the body). Compared to Cancer, malignant (cancerous) tumors, benign tumors generally ...

s derived from cells of the

vascular Vascular can refer to: * blood vessels, the vascular system in animals * vascular tissue Vascular tissue is a complex transporting tissue, formed of more than one cell type, found in vascular plants. The primary components of vascular tissue ...

lymphatic Lymph () is the fluid that flows through the lymphatic system, a system composed of lymph vessels (channels) and intervening lymph nodes whose function, like the venous system, is to return fluid from the tissues to be recirculated. At the origi ...

vessel walls (

endothelium The endothelium (: endothelia) is a single layer of squamous endothelial cells that line the interior surface of blood vessels and lymphatic vessels. The endothelium forms an interface between circulating blood or lymph in the lumen and the r ...

) or derived from cells of the tissues surrounding these vessels. Angiomas are a frequent occurrence as patients age, but they might be an indicator of systemic problems such as liver disease. They are not commonly associated with cancer.

Signs and symptoms

Angiomas usually appear at or near the surface of the

skin Skin is the layer of usually soft, flexible outer tissue covering the body of a vertebrate animal, with three main functions: protection, regulation, and sensation. Other animal coverings, such as the arthropod exoskeleton, have different ...

anywhere on the body, and may be considered bothersome depending on their location. However, they may be present as symptoms of another more serious disorder, such as

cirrhosis Cirrhosis, also known as liver cirrhosis or hepatic cirrhosis, chronic liver failure or chronic hepatic failure and end-stage liver disease, is a chronic condition of the liver in which the normal functioning tissue, or parenchyma, is replaced ...

. When they are removed, it is generally for cosmetic reasons.

Types

* Hemangiomas *# Capillary: Cherry hemangioma,

Infantile haemangioma An infantile hemangioma (IH), sometimes called a strawberry mark due to appearance, is a type of benign vascular tumor or vascular anomaly, anomaly that affects babies. Other names include capillary hemangioma, "strawberry hemangioma", strawber ...

Cavernous The cavernous sinus within the human head is one of the dural venous sinuses creating a cavity called the lateral sellar compartment bordered by the temporal bone of the skull and the sphenoid bone, lateral to the sella turcica. Structure The cav ...

Pyogenic granuloma A pyogenic granuloma or lobular capillary hemangioma is a vascular tumor that occurs on both mucosa and skin, and appears as an overgrowth of tissue due to irritation, physical trauma, or hormonal factors. It is often found to involve the gums, ...

* Lymphangiomas *#

Capillary A capillary is a small blood vessel, from 5 to 10 micrometres in diameter, and is part of the microcirculation system. Capillaries are microvessels and the smallest blood vessels in the body. They are composed of only the tunica intima (the inn ...

(simple) *#

(cystic) *

Glomus tumor :''Glomus tumor was also the name formerly (and incorrectly) used for a tumor now called a paraganglioma.'' A glomus tumor (also known as a "solitary glomus tumor") is a rare neoplasm arising from the glomus body and mainly found under the nail, ...

* Vascular ectasias *#

Naevus flammeus A port-wine stain (''nevus flammeus'') is a discoloration of the human skin caused by a vascular anomaly (a capillary malformation in the skin). They are so named for their coloration, which is similar in color to port wine, a fortified wine, for ...

*# Telangiectasia –

spider Spiders (order (biology), order Araneae) are air-breathing arthropods that have eight limbs, chelicerae with fangs generally able to inject venom, and spinnerets that extrude spider silk, silk. They are the largest order of arachnids and ran ...

, hereditary hemorrhagic * Reactive vascular proliferations *#

Bacillary angiomatosis Bacillary angiomatosis (BA) is a form of angiomatosis associated with bacteria of the genus '' Bartonella''. Symptoms Cutaneous BA is characterised by the presence of lesions on or under the skin. Appearing in numbers from one to hundreds, these ...

References

External links

{{Authority control Dermal and subcutaneous growths Benign neoplasms

Signs and symptoms

Types

See also

References

External links