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angioid

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(an′jē-oyd″) [angio- + -oid] Resembling a blood vessel.

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angioinvasion

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(an″jē-ō-in″vā′zhŏn) [angio- + invasion] The penetration of blood vessels by bacteria, fungi, parasites, tumors, or other entities.

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angiokeratoma

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(an″jē-ō-ker″ă-tō mă) [angio- + keratoma] A skin disorder occurring chiefly on the feet and legs, marked by formation of telangiectases or warty growths accompanied by thickening of the epidermis along the course of dilated capillaries.

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angiokinetic

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(an″jē-ō-kĭ-net′ĭk) [angio- + kinetic] Pert. to constriction and dilation of blood vessels. SEE: vasomotor.

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angiolipoma

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(an″jē-ō-lĭ-pō′mă) [angio- + lipoma] A tumor consisting of vascular and fatty cells.

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angiology

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(an″jē-ol′ŏ-jē) [angio- + -logy] The study of blood vessels and lymphatics.

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angiolysis

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(an″jē-ol′ĭ-sĭs) [angio- + -lysis] Obliteration of blood vessels, as in the umbilical cord when it is tied just after birth.

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angioma

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(an″jē-ō′mă, ′mă-tă) pl.-mas, -mata [angio- + -oma] A usually benign tumor consisting principally of blood vessels (hemangioma) or lymph vessels (lymphangioma). It is considered to represent remnants of fetal tissue misplaced or undergoing disordered development. SEE: epithelioma; hamartoma; nevus. angiomatous (-ō măt-ŭs), adj.

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capillary a. A congenital, superficial hemangioma appearing as an irregularly shaped, red discoloration of otherwise normal skin, and caused by overgrowth of capillaries. SYN: a. simplex.

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a. cavernosum Cavernous a.

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cavernous a. A congenital hemangioma appearing as an elevated dark red benign tumor, ranging in size from a few millimeters to several centimeters. It may pulsate. It commonly involves the subcutaneous or submucous tissue and consists of blood-filled vascular spaces. Small cavernous angiomas may disappear without therapy. SYN: a. cavernosum.

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cherry a. A benign, dome-shaped cherry-red papule on the trunk, consisting of a compressible mass of blood vessels measuring about 0.5 mm to 6.0 mm, and occurring esp. in people over 30. SYN: Campbell de Morgan spot; ruby spot; senile a.

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senile a. Cherry a.

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serpiginous a. An angioma marked by small red vascular dots arranged in rings, caused by proliferation of capillaries.

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a. simplex Capillary a.

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spider a. A branched growth of dilated capillaries on the skin, resembling a spider. This abnormality may be associated with cirrhosis of the liver. SYN: nevus araneus; spider nevus.

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stellate a. A skin lesion in which numerous telangiectatic vessels radiate from a central point; commonly associated with liver disease, hypertension, or pregnancy. SYN: spider nevus.

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telangiectatic a. An angioma composed of abnormally dilated blood vessels.

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