lesion /le·sion/ (le´zhun) any pathological or traumatic discontinuity of tissue or loss of function of a part.
Lesion
lesion
lesion (lē´zh
n),
lesion
angiocentric immunoproliferative lesion a multisystem disease consisting of invasion and destruction of body tissues and structures by atypical lymphocytoid and plasmacytoid cells resembling a lymphoma, often progresssing to lymphoma.
Armanni-Ebstein lesion vacuolization of the renal tubular epithelium in diabetes.
benign lymphoepithelial lesion enlargement of the salivary glands with infiltration of the parenchyma by polyclonal B cells and T cells, atrophy of acini, and formation of lymphoepithelial islands.
Blumenthal lesion a proliferative vascular lesion in the smaller arteries in diabetes.
central lesion any lesion of the central nervous system.
Ghon's primary lesion Ghon focus.
Janeway lesion a small erythematous or hemorrhagic lesion, usually on the palms or soles, in bacterial endocarditis.
primary lesion the original lesion manifesting a disease, as a chancre.
le·sion (l  zh n)n. 1. A wound or an injury. 2. A localized pathological change in a bodily organ or tissue. 3. An infected or diseased patch of skin. |
Lesion
Any visible, local abnormality of the tissues of the skin, such as a wound, sore, rash, or boil.
Mentioned in: Bowel Preparation, CT-Guided Biopsy, Graft-vs.-Host Disease, Hyperlipoproteinemia, Hyperpigmentation, Leishmaniasis, Leprosy, Lichen Simplex Chronicus, Pinta, Psychosurgery, Skin Biopsy, Skin Cancer, Non-Melanoma, Skin Lesions, Smallpox, Testicular Surgery, Vocal Cord Nodules and Polyps
lesion
[lē′zhen]
Etymology: L, laesus, an injury
1 a wound, injury, or pathologic change in body tissue.
2 any visible local abnormality of the tissues of the skin, such as a wound, sore, rash, or boil. A lesion may be described as benign, cancerous, gross, occult, or primary.
lesion (lē´zh
n),n a pathologic disturbance of a tissue, with loss of con-tinuity, enlargement, and/or function.
lesion, brown spot,
n an area of demineralized tooth enamel that turns brown before progressing to an active caries.
lesion, carious,
n also known as dental caries or tooth cavities. Typically caused by acid-producing bacteria, which lowers the pH of the oral cavity, causing demineralization. See caries.
lesion, coalescing
(ko´les´ing),
n numerous raised nodules that often appear in groups on the skin surface of the knees, elbows, and lower extremities. The nodules coalesce to form a large patch that appears to be a single lesion.
les´ing), n numerous raised nodules that often appear in groups on the skin surface of the knees, elbows, and lower extremities. The nodules coalesce to form a large patch that appears to be a single lesion.
lesion, of endodontic origin (LEO),
n an abscess in the tooth root. Usually the result of caries, tooth fracture, or an invasive dental procedure.
lesion, extravasation,
n See cyst, traumatic.
lesion, fibroosseous jaw,
n an area in the jaw where normal alveolar bone has been replaced by a fibrous, mineral material.
lesion, flat oral,
n a regularly or irregularly shaped laceration developing on the surface of the oral mucosa or normal skin.
lesion, herpetic,
n a vesicle and/or ulceration of the mucosa caused by herpesvirus.
lesion, herpetiform,
n a painful ulceration of the oral mucosa with a red center and yellow border; occurs as a solitary lesion or in groups and appears similar to those lesions caused by herpesvirus. The term
herpetiform is used as a clinical designation unless the viral cause has actually been demonstrated.
herpetiform is used as a clinical designation unless the viral cause has actually been demonstrated.
)
Flat oral lesions.
lesion, indefinite bone,
n See cyst, extravasation.
lesion, mucous extravasation,
n.pl See cyst, mucous.
lesion, noncarious dental,
n.pl the abnormalities occurring on the surfaces of teeth that do not fall under the category of dental cavities. They may include enamel hypoplasia, attrition, erosion, abrasion, or tooth fractures.
lesion, precancerous,
n a tissue abnormality or wound that although not yet malignant shows signs indicating the likely development of cancer in the future.
lesion, subsurface,
n an area of softness below the tooth enamel that occurs as the result of acid retention. Can be corrected by fluoride administration.
lesion, traumatic bone,
n See cyst, traumatic.
lesion, white spot,
n a small, demineralized area of tooth enamel occurring under or near orthodontic brackets or bands.
lesion
any pathological or traumatic discontinuity of tissue or loss of function of a part. Lesion is a broad term, including wounds, sores, ulcers, tumors, cataracts and any other tissue damage. They range from the skin sores associated with eczema to the changes in lung tissue that occur in tuberculosis.
)
Terms describing distribution of lesions. By permission from Slauson DO, Cooper BJ, Mechanisms of Disease: A Textbook of Comparative General Pathology, Mosby, 2001
target lesion
see target lesion.
lesion
Localized, pathological change in a tissue due to injury or disease.
lesion
Medtalk 1. A wounded or damaged area; an anatomic or functional tissue defect; an area of abnormal tissue change 2. A nebulous nonspecific term used by a physician when discussing a lump or bump with a Pt. See Mass.
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