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A venous lake (also known as phlebectasis [1]) is a generally solitary, soft, compressible, dark blue to violaceous, 0.2- to 1-cm papule commonly found on sun-exposed surfaces of the vermilion border of the lip, face and ears.
Dilated blood vessels can also develop on the legs, although when they occur on the legs, they often have underlying venous reflux or "hidden varicose veins" (see Venous hypertension section below). When found on the legs, they are found specifically on the upper thigh, below the knee joint and around the ankles.
Non-cardiac signs and symptoms demonstrated by this condition include: [1] [5] Arachnodactyly; Autonomic dysfunction; Blepharophimosis; Congenital diaphragmatic hernia; Keratoconus; Mental dysfunction; Telangiectasia (small clusters of enlarged blood vessels just under the skin).
Coronary artery ectasia is characterized by an increased wall stress of the vessel, thinning of the arterial wall which causes progressive dilation and remodelling of the vessel. [2] The permanent dilation of the artery is thought to be mainly caused by inflammation, triggered by disease, chemicals, or physical stress of the vessel. [3]
Caviar tongue is a condition characterized by the purplish nodular swelling of veins found on the undersurface of the tongue. [1]It is normal for there to be veins visible underneath the tongue, partly because the mucous membrane is so thin and translucent in this region, but where these vessels become dilated and tortuous, they may appear round and black like caviar. [2]
Eagle syndrome (also termed stylohyoid syndrome, [1] styloid syndrome, [2] stylalgia, [3] styloid-stylohyoid syndrome, [2] or styloid–carotid artery syndrome) [4] is an uncommon condition commonly characterized but not limited to sudden, sharp nerve-like pain in the jaw bone and joint, back of the throat, and base of the tongue, triggered by swallowing, moving the jaw, or turning the neck. [1]
It is also vital in the rest of the body as the blood vessels are in charge of carrying nutrients and the discard of metabolic wastes. Therefore, blood vessel disorder can cause serious complications in the whole body. [citation needed] Coronary arteries are the blood vessels that supply to the heart for its normal function. Blood vessel ...
The size of these blood vessels varies from 1–5 mm (more than 10 times the normal diameter of mucosal capillaries). Pulsation from the enlarged vessels leads to focal pressure that causes thinning of the mucosa at that location, leading to exposure of the vessel and subsequent hemorrhage.