chancre /chan·cre/ (shang´ker) [Fr.]
Chancre
chancre
chancre [shang´ker]
1. the primary sore of syphilis, occurring at the site of entry of the infection.
2. the primary cutaneous lesion of such diseases as sporotrichosis and tuberculosis.
hard chancre , hunterian chancre chancre (1).
chancre re´dux chancre developing on the scar of a healed primary chancre.
soft chancre chancroid.
true chancre chancre (1).
tuberculous chancre a brownish red papule which develops into an indurated nodule or plaque, representing the initial cutaneous infection of the tubercle bacillus into the skin or mucosa.
chan·cre (sh ng k r)n. The primary lesion of syphilis; a hard, nonsensitive, dull red papule or area of infiltration that begins at the site of infection after an interval of 10 to 30 days. Also called hard chancre, hard ulcer. chan crous (-krs) adj. |
Chancre
The initial skin ulcer of primary syphilis, consisting of an open sore with a firm or hard base.
Mentioned in: Syphilis
chancre
[shang′kər]
Etymology: Fr, canker
1 also called venereal sore. a skin lesion, usually of primary syphilis, that begins at the infection site as a papule 10 to 30 days after exposure to the spirochete and develops into a red, bloodless, painless ulcer with a scooped-out appearance. It heals without treatment and leaves no scar. Two or more chancres may develop at the same time, usually in the genital area but sometimes on the hands, face, or other body surface. The chancre teems with Treponema pallidum spirochetes and is highly contagious.
chancre [shang´ker]
1. the primary lesion of syphilis, occurring at the site of entry of the infection. Called also hard, hunterian, or true chancre.
2. a papular lesion occurring at the site of entry of infection in tuberculosis of the skin or in sporotrichosis.
A true chancre begins as a papule which breaks down into a reddish ulcer. It is generally firm and accompanied by little or no pain. Although most frequently located on the external genitalia, it may be on the lips or fingers. In women, a chancre is sometimes concealed in the internal genitalia where it may not be seen or felt. Two or three may develop simultaneously. A chancre heals of its own accord without treatment, thus leading many persons infected with syphilis to believe they are cured. They are not, and if adequate medical treatment is not begun at this early and curable stage of syphilis, the disease will progress, doing irreparable damage.
A true chancre begins as a papule which breaks down into a reddish ulcer. It is generally firm and accompanied by little or no pain. Although most frequently located on the external genitalia, it may be on the lips or fingers. In women, a chancre is sometimes concealed in the internal genitalia where it may not be seen or felt. Two or three may develop simultaneously. A chancre heals of its own accord without treatment, thus leading many persons infected with syphilis to believe they are cured. They are not, and if adequate medical treatment is not begun at this early and curable stage of syphilis, the disease will progress, doing irreparable damage.
Chancre of primary syphilis. From Frazier et al., 2000.
chancre (shang·ker),
n extremely contagious symptom of primary syphilis; appears as a lesion at the site of infection, first as a papule and then turns red; is painless and bloodless; has raised edges. Heals without leaving a scar.
)
Chancre.
chancre (autochthonous ulcer) (shang´kur),
n the primary lesion of syphilis, located at the site of entrance of the spirochete into the body, occurring about 3 weeks after contact. It begins as a papule and then develops into a clean-based shallow ulcer. Secondary infection may produce suppuration. Has the appearance of a buttonlike mass because of the contiguous induration and rolled border. Weeping characteristics also are present.
chancre of lip,
n the primary lesion of syphilis that often appears as an ulcerated or crusted, indurated lesion with a brownish or copper-colored weeping base when located on the lip, which contains
T. pallidum.
T. pallidum.
chancre, soft,
n See chancroid.
chancre
the 2 to 4 in, hard, hot, painful lesion which develops at the site of tsetse-fly bites when the fly is a transmitter of trypanosomiasis. In human medicine, refers to the primary lesion of syphilis.
chancre
STD The classic 1º skin lesion of syphilis, which consists of a painless 1–2 cm ulcer; the 1º chancre is highly contagious, contains zillions of spirochetes, and heals as a papule; chancres outside the vagina or on the
scrotum render condoms useless in disease-preventing systems. See Kissing chancre, Syphilis.
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