spot (spot) a circumscribed area; a small blemish; a macula.
spot
spot [spot]
spot,
spot
Patient discussion about spot.
Bitot's spots foamy gray, triangular spots of keratinized epithelium on the conjunctiva, associated with vitamin A deficiency.
blind spot
1. optic disk.
2. mental scotoma.
café au lait spots macules of a distinctive light brown color, such as occur in neurofibromatosis and Albright's syndrome.
cherry-red spot the choroid appearing as a red circular area surrounded by gray-white retina, as viewed through the fovea centralis in Tay-Sachs disease.
cold spot see temperature s's.
cotton-wool spots white or gray soft-edged opacities in the retina, seen in hypertensive retinopathy, lupus erythematosus, and other conditions.
Forschheimer spots a fleeting exanthem consisting of discrete rose spots on the soft palate sometimes seen in rubella just prior to the onset of the skin rash.
germinal spot the nucleolus of an oocyte.
hot spot
1. see temperature s's.
2. the sensitive area of a neuroma.
3. an area of increased density on an x-ray or thermographic film.
Koplik's spots irregular, bright red spots on the buccal and lingual mucosa, with tiny bluish-white specks in the center of each; seen in the prodromal stage of measles.
liver spot
1. a lay term for any of the brownish spots on the face, neck, or backs of the hands in many older people.
2. (pl.) tinea versicolor.
Mariotte's spot optic disk.
milky spots aggregations of macrophages in the subserous connective tissue of the pleura and peritoneum.
mongolian spot a smooth, brown to grayish blue nevus, consisting of an excess of melanocytes, typically found at birth in the sacral region in Asians and dark-skinned races; it usually disappears during childhood.
pain spots spots on the skin where alone the sense of pain can be produced by a stimulus.
rose spots an eruption of rose-colored spots on the abdomen and thighs during the first seven days of typhoid fever.
Roth's spots round or oval white spots sometimes seen in the retina early in the course of subacute bacterial endocarditis.
Soemmering's spot macula lutea.
Tardieu's spots spots of ecchymosis under the pleura after death by suffocation.
temperature spots spots on the skin normally anesthetic to pain and pressure but sensitive respectively to heat and cold.
yellow spot macula retinae.
spot (sp t)n. 1. A mark on a surface differing sharply in color from its surroundings. 2. A stain or blot. v. To lose a slight amount of blood through the vagina. |
spot
Etymology: ME, blot
(in psychotherapy) a small quantum of space that becomes the territorial object and extension of point behavior.
spot [spot]
actual focal spot the section of a focal spot on which there is intersection of an electron beam with an anode of an x-ray tube.
Bitot's s's foamy gray triangular spots of keratinized epithelium on the conjunctivae, a sign of vitamin A deficiency.
blind spot
1. optic disk.
2. mental scotoma.
café au lait spot a light brown pigmented macule seen in neurofibromatosis and albright's syndrome.
cherry-red spot the choroid appearing as a red circular area surrounded by gray-white retina, as viewed throught the fovea centralis in tay-sachs disease. Called also Tay's spot.
cotton-wool spot white or gray soft-edged opacities in the retina composed of cytoid bodies; seen in hypertensive retinopathy, lupus erythematosus, and numerous other conditions.
effective focal spot the size of a projected focal spot in a specified direction measured with a quality assurance test tool such as the slit camera.
focal spot
1. the object of a patient's gaze during distraction techniques.
2. a small area of an x-ray target that receives the main electron stream.
Forschheimer s's a fleeting skin eruption consisting of discrete rose spots on the soft palate sometimes seen in rubella just prior to the onset of the skin rash.
Koplik's s's small, irregular, bright red spots on the buccal and lingual mucosa, with a minute bluish white speck in the center of each; they are pathognomonic of beginning measles.
liver spot
1. a lay term for senile lentigo.
2. (in pl.) tinea versicolor.
mental blind spot mental scotoma.
mongolian spot a type of congenital brown to gray-blue nevus; see also mongolian spot.
Roth's s's round or oval white spots consisting of coagulated fibrin seen in the retina in a number of diseases in which a vascular insult resulting in hemorrhage is followed by healing.
Tay's spot cherry-red spot.
spot,
n a small circular area.
spot, café-au-lait,
n a group of brown-pigmented areas of the skin occurring particularly in neurofibromatosis.
spot, effective focal,
n (prolonged focus), the apparent size and shape of the focal spot when viewed from a position in the useful beam. With the use of a suitably inclined anode face, the area from which the useful beam stems is sharply concentrated, if seen from the perspective of the useful beam. See also line, focus.
spot, focal,
n the specific area of the face of the anode or target that is bombarded by the focused electron stream when a radiographic tube is in action. It is usually an insert of tungsten.
spot, Fordyce's,
n.pr See Fordyce granules.
spot, Koplik's,
n.pr an oral lesion of measles (rubeola); usually occurs on the buccal mucosa opposite the molar teeth as small white or bluish-white spots surrounded by red zones.
spot, pink,
n See resorption, internal.
spot
a small, roundish part of a surface which differs from the surrounding surface.
spot disease
of turtles. See shell rot.
spot map
a map with dots on it. Each dot marks where a case or some other incident of epidemiological interest occurred.
spot
A small, circumscribed area visibly different in colour or texture from the surrounding tissue.
baring of the
blind spot A visual field defect in which there is such a marked contraction of the peripheral temporal visual field that it lies on, or nasal to, the blind spot. Although it may occur in open-angle glaucoma, it is not indicative of the disease as it also occurs in other conditions (e.g. miosis). See Bjerrum's scotoma.
Bitot's spot Foamy patch found on the bulbar conjunctiva near the limbus in xerophthalmia and due to vitamin A deficiency. Syn. Bitot's patch.
blind spot Physiological negative scotoma in the visual field corresponding to the head of the optic nerve. It is not seen in binocular vision, as the two blind spots do not correspond in the field. In monocular vision it is usually not noticed. It has the shape of an ellipse with its long axis vertical and measuring approximately 7.5º, whereas its shorter axis along the horizontal measures approximately 5.5º. Its centre is located 15.5º to the temporal side of the centre of the visual field and 1.5º below the horizontal meridian. Syn. blind spot of Mariotte; physiological blind spot; punctum caecum (Fig. S11). See myelinated nerve fibres; retinal image.
blind spot enlargement A visual field defect in which the blind spot appears larger than normal. One of the common causes is papilloedema.
blind spot esotropia; syndrome See Swann's syndrome.
cherry-red spot Bright red appearance of the macular area in an eye with occlusion of the central retinal artery, Tay-Sachs disease or Niemann-Pick disease. In the case of central retinal artery occlusion the surrounding area is white due to ischaemia but the reddish reflex from the intact choroidal vessels beneath the fovea shows at that spot since the retina is thinnest there. There is a very marked, if not complete, loss of vision which appears suddenly. In cases of storage disease (i.e. Niemann-Pick or Tay-Sachs), the area surrounding the fovea is artificially whitened and opaque, offsetting the normal pinkish colour of the fovea (Fig. S12). See Niemann-Pick disease; Sandhoff's disease; Tay-Sachs disease; retinal arterial occlusion.
cotton-wool s'spot See cytoid bodies; exudate.
Elschnig's s'spot Small, yellowish spots found in the fundus in advanced hypertensive retinopathy. They are choroidal infarcts caused by insufficient blood supply.
Fuchs'spot A round or elliptical, pigmented spot, usually located in the macular or paramacular area. It occurs in patients who have pathological myopia. It is due to breaks in Bruch's membrane (called lacquer cracks) and to the development of a choroidal neovascular membrane followed by subretinal haemorrhage which has changed colour and has become pigmented. The patient may notice photopsia when the membrane breaks but eventually it causes a loss of vision with a central scotoma. Syn. Forster-Fuchs spot.
Maxwell's spot Entopic phenomenon in which the subject can observe a dark or greyish spot in the visual field corresponding to this fovea. This is accomplished by viewing a diffusely illuminated field through a purple-blue or dark blue filter. (These are the best colours for this observation.) This phenomenon is used clinically to detect eccentric fixation by placing a fixation point in the diffusely illuminated field. The degree of eccentric fixation can thus be estimated by asking the subject to describe the position of the grey spot with respect to the fixation point. See entoptic image.
Roth's spot A small white spot consisting of coagulated fibrin seen in the middle of a retinal haemorrhage. It is associated with leukaemia, but it can be seen in subacute bacterial endocarditis, diabetic retinopathy, hypertensive retinopathy and vascular conditions with capillary fragility.
baring of the
blind spot A visual field defect in which there is such a marked contraction of the peripheral temporal visual field that it lies on, or nasal to, the blind spot. Although it may occur in open-angle glaucoma, it is not indicative of the disease as it also occurs in other conditions (e.g. miosis). See Bjerrum's scotoma.
Bitot's spot Foamy patch found on the bulbar conjunctiva near the limbus in xerophthalmia and due to vitamin A deficiency. Syn. Bitot's patch.
blind spot Physiological negative scotoma in the visual field corresponding to the head of the optic nerve. It is not seen in binocular vision, as the two blind spots do not correspond in the field. In monocular vision it is usually not noticed. It has the shape of an ellipse with its long axis vertical and measuring approximately 7.5º, whereas its shorter axis along the horizontal measures approximately 5.5º. Its centre is located 15.5º to the temporal side of the centre of the visual field and 1.5º below the horizontal meridian. Syn. blind spot of Mariotte; physiological blind spot; punctum caecum (Fig. S11). See myelinated nerve fibres; retinal image.
blind spot enlargement A visual field defect in which the blind spot appears larger than normal. One of the common causes is papilloedema.
blind spot esotropia; syndrome See Swann's syndrome.
cherry-red spot Bright red appearance of the macular area in an eye with occlusion of the central retinal artery, Tay-Sachs disease or Niemann-Pick disease. In the case of central retinal artery occlusion the surrounding area is white due to ischaemia but the reddish reflex from the intact choroidal vessels beneath the fovea shows at that spot since the retina is thinnest there. There is a very marked, if not complete, loss of vision which appears suddenly. In cases of storage disease (i.e. Niemann-Pick or Tay-Sachs), the area surrounding the fovea is artificially whitened and opaque, offsetting the normal pinkish colour of the fovea (Fig. S12). See Niemann-Pick disease; Sandhoff's disease; Tay-Sachs disease; retinal arterial occlusion.
cotton-wool s'spot See cytoid bodies; exudate.
Elschnig's s'spot Small, yellowish spots found in the fundus in advanced hypertensive retinopathy. They are choroidal infarcts caused by insufficient blood supply.
Fuchs'spot A round or elliptical, pigmented spot, usually located in the macular or paramacular area. It occurs in patients who have pathological myopia. It is due to breaks in Bruch's membrane (called lacquer cracks) and to the development of a choroidal neovascular membrane followed by subretinal haemorrhage which has changed colour and has become pigmented. The patient may notice photopsia when the membrane breaks but eventually it causes a loss of vision with a central scotoma. Syn. Forster-Fuchs spot.
Maxwell's spot Entopic phenomenon in which the subject can observe a dark or greyish spot in the visual field corresponding to this fovea. This is accomplished by viewing a diffusely illuminated field through a purple-blue or dark blue filter. (These are the best colours for this observation.) This phenomenon is used clinically to detect eccentric fixation by placing a fixation point in the diffusely illuminated field. The degree of eccentric fixation can thus be estimated by asking the subject to describe the position of the grey spot with respect to the fixation point. See entoptic image.
Roth's spot A small white spot consisting of coagulated fibrin seen in the middle of a retinal haemorrhage. It is associated with leukaemia, but it can be seen in subacute bacterial endocarditis, diabetic retinopathy, hypertensive retinopathy and vascular conditions with capillary fragility.
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Fig. S11 Demonstration of the blind spot
)
Fig. S12 Cherry-red spot at the macula
spot
Gynecology See Spotting Vox populi A small lesion, usually on the skin. See Age spot, Bald spot, Black spot, Blind spot, Cafe-au-lait spot, Horder spot, Hot spot, Liver spot, Milk spot, Mongolian spot, Oak leaf spot, Powder burn spot, Rose spot, Strawberry spot, White spot.
Patient discussion about spot.
Q. I would like information if anyone can help me i am 30 years old and have a bald spot,it hasn't grown back. It's been more than 5 years and little by little it just wont grow back. Please anyone help.
A. you know what? I'm gonna be honest with you, the only thing you can do is to get a very short haircut, because baldness is genetical, the mother have the bald gen, dihidrotestorone with only men have is what make develop baldness in men, that is why women can carry the gen and don't be bald, because they don't have big amounts of this hormone.
Q. i have just notices some grey spots on my neck that keep showin up, im 21 and have no clue what they are? they are not that big and very in size and i dont know what they are. i dont think that they are aging spots at all and they have a slight texture to them. they dont bumb out a all though.
A.
Q. how come when i have terrible headaces that i see spots the spots are yellow orange and red.
A. A migraine headache is often described as throbbing and usually felt on only one side of your head, but may be felt on both. A migraine may make you feel lightheaded or dizzy and/or make your stomach upset. You may see spots or be sensitive to light, sounds and smells. If you get migraines, chances are one of your parents or other family members also have had this problem. Not all headaches require medical attention. Some result from missed meals or occasional muscle tension and are easily remedied. But some types of headache are signals of more serious disorders, and call for prompt medical care. Sensitivity to light is a standard symptom of the two most prevalent types of migraine headache: classic and common. The major difference between the two types is the appearance of neurological symptoms 10 to 30 minutes before a classic migraine headache.
http://www.healthnewsflash.com/conditions/headache.php
Hope this helps.
Read more or ask a question about spothttp://www.healthnewsflash.com/conditions/headache.php
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